Outline Unit J: Purpose, Function, Skeletal System Parts Broad Unit J Goals: Students will identify the gross and cellular structures of the skeletal system and list the common external anatomical sites of animals. Students will analyze the purpose and function of the skeletal system, compare and contrast skeletal structures of different species, explain how function determines form of skeletal structures, and apply knowledge of normal function to assess abnormal changes and then suggest possible interventions. J.1 Purpose, Function, Skeletal System Parts J.1.1 Form follows function in the axial and appendicular parts of the skeleton to facilitate movement in an animal. J.2 Bone Development and Structure J.2.1 The cellular structure and shape of a bone impact its function. J.3 Common Names for Animal Parts: Comparative Anatomy J.3.1 Identification of bones, bone structure and bone location is essential to develop a total understanding of the skeletal system and general body supporting structure. J.4 Dental Structures of Animals J.4.1 Herbivores, omnivores and carnivores have similarities and differences in tooth structure that reflect the eating habits of the species. J.5 Skeletal Malfunctions: Bone Breaks and Repairs J.5.1 Bone maintenance and repair depends on age, the type of break, the location and the severity of the damage. J.6 Skeletal Disease and Genetic Issues J.6.1 Diseases and genetic issues of the skeletal system can impact bodily functions and/or specific parts of the skeletal system. J.7 Skeleton and Body Movement J.7.1 Joints, ligaments and tendons allow the bone components of the skeletal system to work together for body movement and support. Unit J: Outline Terminology Terminology: Abdomen: part of the body housing the digestive organs Appendicular Skeleton: the bones that make up the shoulders, fore limbs, pelvis and hind limbs, whose primary purposes are for movement and locomotion Axial Skeleton: the bones of the head and trunk, including the vertebrae and ribs, whose primary purpose is for protection of internal organs Biped: an animal which stands on two feet; includes the kangaroo, the human and almost all bird species Cartilage: soft, shock absorbing substance which covers the ends of bones and reduces bone-on-bone injury; also, connective tissue that becomes bone with age Comminuted bone break: complete break at multiple points; also known as “shattered” Complete bone break: bone which breaks all the way through Compound bone break: bone which breaks and pierces the skin Deciduous: falling down or falling out, in regards to dental work; non-permanent teeth Diaphysis: main section of a long bone Digitigrade: bone structure which has an animal walking on its toes and not placing weight on the heels of the foot (e.g., cat, dog and walking birds) Endoskeleton: internal skeleton Epiphysis: end portion or end portions of a long bone Epiphyseal Plates: cartilage that allows long bones to grow in length; also known as growth plates; plates harden after puberty and eventually turn into solid bone Eruption: the act of leaving one location through a barrier Exoskeleton: external skeleton Fissured or Linear bone break: incomplete break parallel to the bone and often caused by bones pushing against other bones Fontanel: the soft spot in the top of the skull; the location of un-calcified bone at birth Greenstick bone break: incomplete break caused by bending of the bone in an arc shape; a break most commonly found in long bones Histology: the study of structures in the body that can only be viewed with a microscope Incomplete bone break: break that occurs only a portion of the way through the bone Incisors: front teeth on the upper and lower jaw Invertebrate: an animal which does not possess a backbone Joint: location where two bones meet Unit J: Terminology Terminology Ligament: strong band of connective tissue which connects bone to other bone at joint Molars: teeth in the back of the mouth, specifically used for grinding Oblique (non-displaced) bone break: complete break at a diagonal to the bone, when the bone does not shift apart Oblique (displaced) bone break: complete break at a diagonal to the bone, when the bone shifts apart; oblique breaks often lead to compound fractures but can be simple, as well Permanent teeth: teeth that will remain for the majority of the life of the animal Plantigrade: bone structure of an animal that walks on soles of its feet (e.g., human and bear) Quadruped: an animal which stands on four feet; includes cattle, sheep, dogs, cats and the majority of animal species Simple bone break: bone that breaks at any point but does not pierce the skin Skeleton: framework of bone, cartilage and other non-bending materials in a body Spiral bone break: break due to the twisting of the shaft of the bone; bone can be broken anywhere and break can lead to oblique, comminuted or fissured breaks, as well Tendon: connective tissues which connect muscles to bones at a joint (When the muscle contracts, the tendon pulls the bone in the direction of the contraction.) Thorax: the body part housing the heart and lungs; located between the neck and diaphragm Transverse bone break: complete break across the bone and perpendicular to the bone Unguligrade: a type of locomotion or gait in which only the tips of the digits touch the ground and remainder of the foot is off the ground; the gait of ungulates, like horses and cows (Odd-toed examples: horses and rhinos; even-toed examples: cattle, pigs and deer) Vertebrate: an animal which possesses a backbone Unit J: Terminology Background Unit J: Skeletal System Reading Integration: Stump the Teacher: Students and instructor should read about the skeletal system independently. Then, students will think of questions to ask the instructor to stump him/her. The questions should be about the content and not along the lines of “What is the fourth word on page 2?” In order for a body to work, the skeletal system needs to be functional. All vertebrate organisms have an internal skeletal system. These include all mammals (e.g., dogs, cats, horses, pigs), birds (e.g., turkeys, chickens, parrots, ostrich, sparrows), amphibians (e.g., frogs, salamanders), reptiles (e.g., snakes, lizards, turtles) and fish (e.g., koi, bettas, guppies). Different types of bones serve different purposes and have different placement inside the body. The purpose of the skeleton is protection and bodily support, but the individual bones in the body have additional purposes, as well. The skeletal system has five major functions: Body structure and support Movement of the body in connection with the muscular system Protection of the internal organs, especially those in the thoracic cavity Production of blood cells Storage of nutrients, energy and minerals, such as calcium, phosphorous and fat. In order to accomplish its purposes, the skeletal system is broken down into two major parts: Appendicular skeleton Axial skeleton. Both the appendicular and axial portions of the skeleton are involved in body structure and support, production of blood cells and storage of nutrients. The axial portion of the skeleton is primarily responsible for protection of the internal organs, and the appendicular portion of the skeleton is primarily responsible for locomotion or movement of the body. Reading Integration: Create a Venn diagram of the appendicular and axial skeletal systems to include functions and component bones. Unit J: Background Information Background Axial Skeleton The axial skeleton is comprised of the bones of the head and trunk, including the vertebrae and ribs. The primary purpose of these bones is for protection of internal organs. Skull The skull consists of many plates of bone fused together over time as the body develops. At birth, a soft spot is located in the top of the skull where bone has not calcified. It is called the fontanel. The skull bone is used to protect the brain and has multiple openings to allow for nerves to connect with other parts of the body. The shape of the skull varies by animal and is related to the purpose of that animal. For example, ferrets, which squeeze through tight spaces in order to stalk prey, have a much more elongated skull that allows them to fit through small openings. Other animals, like aardvarks and snakes, have similar elongation of the skull. In contrast, chimpanzees, humans, rabbits or cats do not have the same natural instincts or the same need to fit into tight spaces. So, these creatures have a much more rounded skull shape. Vertebrae and Ribs The vertebrae are individual bones which make up the spinal column of an animal. The specific number of vertebrae varies between species. Vertebrae are broken into five distinct regions in the spinal column based on form and function. These include the following: cervical vertebrae thoracic vertebrae lumbar vertebrae sacral vertebrae coccygeal vertebrae. Ribs are connected to the thoracic vertebrae and protect the organs of the thoracic cavity. The three types of ribs include the following: true ribs false ribs floating ribs. Appendicular Skeleton The appendicular skeleton is composed of the bones that make up the shoulders, fore limbs, pelvis and hind limbs. The primary purpose of these bones is for movement and Unit J: Background Information Background locomotion, but they are not needed for the survival of the animal. The forelimbs/arms of the animal are the bones that make up the front limbs or arms and which extend from the shoulder through the digits. The hind limbs/legs are the bones that make up the rear limbs or legs and which extend from the pelvis through the digits. Teeth and Oral Health The jaw is composed of bones, tissues and glands and is used in digestion and respiration. Without the jaw working properly, animals have difficulty maintaining weight, breathing and ultimately surviving. The upper jaw is known as the maxilla and is nonmoving in regards to chewing and eating. The lower jaw is the mandible, and it moves up and down for respiration, vocalization and mastication. Teeth are set into a bone that is critical for eating, grooming and defense. In order for an animal to maintain overall health, oral health must be considered. Since teeth are permanent for the majority of the life of the animal, they also need to be cared for and checked. Within the jaw there can be different types of teeth. They include the following: incisors for biting canine teeth for holding or tearing food premolars and molars, primarily for grinding food. Different species have different numbers of incisors, canines, premolars and molars, and individual species also have different tooth placement within the mouth. Shapes and Composition of Bones There are five main types/shapes of bone in the body. They include the following: long bones short bones flat bones irregular bones sesamoid bones. These are composed of two types of tissues and multiple different types of cells. Macroscopically, bones include the following: periosteum cortical bone trabecular bone medullary cavity Unit J: Background Information Background hyaline cartilage fibrocartilage elastic cartilage cells. Each bone in the body is marked with projections, depressions, openings and attachment points, depending on its purpose and function. The anatomy of the bone allows it to meet the purpose of the skeletal system for movement and flexibility. Bones continually grow and develop over the life of the organism. Bones in Veterinary Medicine Veterinary professionals need to be able to communicate about the parts of animals and understand both the scientific and common names for anatomical parts. Understanding that various species have different common names is also important when working with animals. Utilizing both skeletal and external anatomy to identify body anatomy is important to determine where bones are located under the skin and within the body. Skeletal Ailments Even in the healthiest skeleton, bones can break, resulting in pain, possible skeletal deformation and even death of the individual, depending on the location and severity of the damage. Bones break at any age, but younger and older animals are at the greatest risk. Bones of young animals are still developing and have not hardened completely. Bones of older animals become more brittle and can also experience osteoporosis. In addition, animals that have experienced poor nutrition, chronic illness, over working or excessive weight can also be at greater risk for bone disorders. When a bone breaks, it can never and will never be the same again, and just like skin trauma, bone tissues scar within the body. No matter the type of break, blood vessels and capillaries inside the bone also break. As these break, blood leaks out of the bone, just like it leaks from a wound when the skin is scratched. Finally, bone disorders significantly impact the life of an animal. Bone disorders are often genetic in nature and can be destructive to a species. In many cases of domesticated animals, selective breeding is used to eliminate or lessen the effects of bone disorder, and many animals, especially dogs, can be tested either through blood or x-rays to prove that a disorder is not being transmitted to the next generation. Disorders are often masked, and the animals often will show limited signs until the disease or disorder has become a major Unit J: Background Information Background problem. In many cases, when a skeletal disorder is identified, the animal will be pulled from breeding stock and will no longer be used in the gene pool. This does limit the disease spread of heritable traits, but many disorders are only identified later in life. Reading Integration: Complete the following Inquiry Chart about ailments and disorders of the skeletal system. 1. The instructor will provide students with a number of sources. a. There are questions in columns across the top. b. Each row corresponds with a particular source. c. The last row is a general summary of each question. 2. After reading the critical questions in the header row, students will then assess what they already know about the question. 3. Then students explore the topic through the questions in the columns. For each source or text, they answer the questions based on the source or text. 4. At the bottom, students compile all they have discovered into a coherent summary statement to answer each question for the topic in general. Unit J: Background Information Background Name_____________________________________ Appendicular and Axial Skeletal System Appendicular Axial Both Unit J: Background Information Background Name_____________________________________ Skeletal System Ailments & Disorders Inquiry Chart Critical Question #1: Critical Question #2: Critical Question #3: Why are younger and What are the common Which species of pets or older animals at risk for bone disorders in livestock experience most bone breakage? animals? frequent and serious bone disorders? What I think I know Source #1 Source #2 Source #3 Summary of Information Unit J: Background Information Student J.1.1 Student Activity: Making a Pasta Skeleton Name: Purpose: Anatomical structures of different animals vary, as do numbers of bones in both the axial and appendicular skeletons. Understanding where bones are and their purposes allows veterinarians to better understand the gait, movement and overall body of an animal. Key Point: Form follows function in the axial and appendicular parts of the skeleton to facilitate movement in an animal. Know and Do: Research the skeletal structure of any four-legged animal species (recommended to research dog, cat, horse or cow, but any animal with four legs can be used), and determine the number of bones in the skeletal structure. Design and build a three-dimensional skeleton to represent that animal. Label the bones of the skeleton along the axial skeleton and on one forelimb and one hind limb. Terminology: Abdomen: part of the body housing the digestive organs Appendicular Skeleton: the bones that make up the shoulders, fore limbs, pelvis and hind limbs, whose primary purposes are for movement and locomotion Axial Skeleton: the bones of the head and trunk, including the vertebrae and ribs, whose primary purpose is for protection of internal organs Cartilage: soft, shock absorbing substance which covers the ends of bones and reduces bone-on-bone injury; also, connective tissue that becomes bone with age. Digitigrade: bone structure which has an animal walking on its toes and not placing weight on the heels of the foot (e.g., cat, dog and walking birds) Endoskeleton: internal skeleton J.1.1: Student Activity Student Exoskeleton: external skeleton Fontanel: the soft spot in the top of the skull; the location of un-calcified bone at birth Histology: the study of structures in the body that can only be viewed with a microscope Invertebrate: an animal which does not possess a backbone Plantigrade: bone structure of an animal that walks on soles of its feet (e.g., human and bear) Skeleton: framework of bone, cartilage and other non-bending materials in a body Thorax: the body part housing the heart and lungs; located between the neck and diaphragm Unguligrade: a type of locomotion in which only the tips of the digits touch the ground and remainder of the foot is off the ground; bone structure which has animal walking on the hoof (Odd-toed examples: horses, rhinos; even-toed examples: cattle, pigs, deer) Vertebrate: an animal which possesses a backbone Materials: J.1.1 Student Activity Directions J.1.1 Student Handout 1: PowerPoint® Notes J.1.1 Student Handout 2: PowerPoint® Notes: Labeling Axial & Appendicular Skeleton J.1.1 Student Handout 3: Axial and Appendicular Skeleton Chart J.1.1 Student Handout 4: Building a Pasta Skeleton J.1.1 Evaluation: Building a Pasta Skeleton Pasta: various shapes and sizes depending on body structure and form Pipe cleaners and craft wire Scissors Wire snips Hot glue guns and hot glue Safety gloves for use with the glue guns as needed Straws Googly eyes Paper plates Adhesive labels or paper and tape Various colors of paint J.1.1: Student Activity Student J.1.1 Student Activity Directions Procedure: 1. Respond to the Question to Consider as directed by the instructor. 2. Using J.1.1 Student Handout 1: PowerPoint® Notes, complete the notes from the PowerPoint®, Purpose, Function and Parts of Skeletal System. 3. Use J.1.1 Student Handout 2: PowerPoint® Notes: Labeling Axial & Appendicular Skeleton, label the parts of the Axial and Appendicular Skeleton. Use the PowerPoint®, Purpose, Function, Skeletal System Parts, as a guide. 4. Use J.1.1 Student Handout 3: Axial and Appendicular Skeleton Chart as a discussion guide with your instructor and the class to identify the functions of the individual bones. Your instructor will assist in providing the final accurate answers for your notes. 5. Follow the directions on J.1.1 Student Handout 4: Building a Pasta Skeleton to complete the pasta skeleton. 6. Once you have completed your skeleton, complete the questions at the conclusion of Student Handout 4. Use J.1.1 Evaluation Rubric: Building a Pasta Skeleton as your guide. 7. Finally, submit your skeleton, the completed questions, and a blank copy of the J.1.1 Evaluation Rubric for a grade. J.1.1: Student Activity Directions Student J.1.1 Student Handout 1: PowerPoint® Notes Purpose, Function, Skeletal System Parts Name: Terminology: Fill in the blank with the proper term for the provided definition. ___________________________ - part of the body housing the digestive organs ___________________________ - the bones that make up the shoulders, fore limbs, pelvis and hind limbs, whose primary purposes are for movement and locomotion ___________________________ - the bones of the head and trunk, including the vertebrae and ribs, whose primary purpose is for protection of internal organs ___________________________ - the soft spot in the top of the skull; the location of un-calcified bone at birth ___________________________ - the study of structures in the body that can only be viewed with a microscope ___________________________ - framework of bone, cartilage and other non-bending materials in a body ___________________________ - the body part housing the heart and lungs; located between the neck and the diaphragm Purpose and Function: Fill in the spaces with additional information on each function during the next several slides. 1. Body structure and support Bones in the body J.1.1: Student Handout 1 Student 2. Body movement (Movement of the body in connection with the muscular system) Movement 3. Protection of the internal organs (especially those in the thoracic cavity) Specialty bones 4. Blood Cell Production 5. The storage of nutrient J.1.1: Student Handout 1 Student J.1.1 Student Handout 2: PowerPoint® Notes Purpose, Function, Skeletal System Parts Labeling Axial and Appendicular Skeleton Name: Fill in the skeleton with the appropriate terms: Atlas Axis Carpals Cervical vertebrae Coccygeal vertebrae Femur Fibula Humerus Lumbar vertebrae Metacarpals Metatarsals Patella Pelvis Phalanges (X2) Radius Ribs Sacral vertebrae Scapula Sesamoid Skull Tarsals Tibia Thoracic vertebrae Ulna J.1.1: Student Handout 2 Student J.1.1 Student Handout 3: PowerPoint® Notes Purpose, Function, Skeletal System Parts Axial and Appendicular Skeleton Chart Name Bone Type Axial or Appendicular 1.Skull 2. Vertebrae a. Atlas – b. Axis – c. Cervical- d. Thoracic – e. Lumbar – f. Sacral – g. Coccygeal – J.1.1: Student Handout 3 Function in the Body Student Bone Type 5. Hind Limb a. Pelvis – b. Femur – c. Patella – d. Tibia – e. Fibula – f. Tarsal – g. Metacarpals – h. Phalanx (Phalanges) – i. Sesamoids – J.1.1: Student Handout 3 Axial or Appendicular Function in the Body Student J.1.1 Student Handout 4: Building a Pasta Skeleton Name: 1. Choose a four-legged animal. Research the unique bone structure of that animal via Internet. Find drawings and pictures of the skeleton from multiple views. Determine the numbers of each type of vertebrae, ribs, carpals, tarsals, metacarpals and metatarsals for your species. 2. Determine which type of pasta can be used for each bone structure. Correctness of the structure is important. Remember that it needs to look like the animal you selected once you are finished. Example: A horse should have a longer neck than a cow, and a giraffe should have a longer neck than a horse. All of these animals have seven cervical vertebrae; pasta choices need to be considered for proportion and scale, based on the animal you are creating. 3. Construct the three-dimensional frame of the animal skeleton. Make it life-like and accurate. Use craft wire, straws, pipe cleaners and glue as needed to connect and support the structure. The goal is to have the joint be able to move like a real joint would be bendable. Optional: Paint bones on Axial Skelton one color and bones of Appendicular Skeleton a different color. 4. Label the following structures in the body: a. b. Axial Structures i. Skull ii. Vertebrae (Atlas, Axis, Cervical, Thoracic, Lumbar, Sacral, and Coccygeal) iii. Ribs Appendicular Structures i. Forelimb ii. Scapula/Clavicle iii. Humerus iv. Radius/Ulna v. Carpals vi. Metacarpals vii. c. Phalanges Appendicular Structures Hind Limb i. Pelvis ii. Femur iii. Patella iv. Tibia/Fibula v. Tarsals vi. Metatarsals vii. Phalanges 5. Label any additional structures as needed based on the specific animal that you have selected. 6. Affix the skeleton to a plate with hot glue to make it easier to move and for use in the future. This skeleton is also utilized in the muscular unit. J.1.1: Student Handout 4 Student J.1.1 Student Handout 4: Building a Pasta Skeleton Name: 1. What animal species did you select to build? 2. Describe your animal as if it were living, based on the purposes of the skeletal system: a. What are the weight, height and length of the animal? How do the bones in the skeleton support these features of the animal? b. How does the living animal move? Does any of the skeletal system impact movement? c. How are internal organs protected by the skeletal system of your animal? d. What are the three largest bones in the skeleton of this animal? The three smallest? 3. How many total vertebrae are in your animal? How does this number reflect the animal and its body structure? 4. Work with a partner with a different type of animal. Compare and contrast the skeletal structures of that animal against your own. What is different and what is the same? 5. Measure your skeleton. How tall is it in inches? How long is it in inches? 6. Research what the normal length and width of the animal is that you created. Compare it to yours and determine what scale you used to build your animal. (i.e., 1/10th) Real life size: My model: Scale: J.1.1: Student Handout 4 Evaluation J.1.1 Evaluation Rubric: Building a Pasta Skeleton Purpose, Function, and Parts of Skeletal System Name: Pasta 4 3 2 1-0 Skeleton Standard Specific evidence of Research present. Some evidence of No evidence of Research of research present for Species correctly research present. research present in Four- Legged species constructed. constructed. Number of bones and the construction of Structures Number of bones Number of bones bone positioning is the pasta skeleton. correct, and pictures correct or nearly so. present in the provided with pasta Picture lacking or construction. skeleton. not specific. 0-2 bone labels 3-5 bone labels 6-8 bone labels Few to no bones Labeling of missing or incorrect in missing/incorrect or missing or are labeled or most Bones in the placement on not correctly placed. incorrect in labeled and/or Pasta Skeleton developed pasta placement. placed incorrectly skeleton. Spelling on skeleton. All labels spelled Several labels lack Multiple bone labels Labels are missing correctly to identify correct spelling. spelled incorrectly in or are spelled identification. incorrectly. bones of skeleton. All bones are in the Nearly all bones Pasta shapes not Pasta shapes Bone correct location for placed and chosen to best poorly represent Placement and the specific species, represented represent form and bone form and Function and joints can be correctly. Some function of bones; function; there is (X2) bent and molded as joint movement to Little joint movement little if any joint needed to show show working parts. to show working movement. proper function. parts. Skeleton has been Skeleton is well Skeleton is built but Skeleton is not Construction well constructed and constructed with lacks overall neatness, well built and/or Neatness allows for individual minor errors. Work making it difficult to cannot stand, and bones to be identified is clean and see different bones quality of work is and worked with. reasonably neat. and skeletal features. lacking. Evidence of neatness is apparent and work is excellent. Final Score: _____ points/24 points J.1.1: Evaluation Student J.2.1 Student Activity: Bone Development and Structure Name: Purpose: Bone tissue is distinctive, and the ability to identify what a bone cell looks like under a microscope assists in an understanding of bone structure and function. Key Point: The cellular structure and shape of a bone impact its function. Know and Do: Develop skills needed to operate a microscope under different magnifications Evaluate the difference between microscopic and macroscopic anatomy of a bone Terminology: Diaphysis: main section of a long bone Epiphysis: end portion or end portions of a long bone Epiphyseal Plates: cartilage that allows long bones to grow in length; also known as growth plates; plates harden after puberty and eventually turn into solid bone Histology: the study of structures in the body that can only be viewed with a microscope Macroscopic: large enough to be visible with the naked eye Metaphysis: section of the long bone between the epiphysis and the diaphysis Microscopic: so small that it cannot be viewed without the assistance of a microscope Materials: J.2.1 Student Activity Directions J.2.1 Student Handout 1: PowerPoint® Notes: Bone Development and Structure J.2.1 Student Handout 2: PowerPoint® Notes: Labeling the Bone J.2.1 Student Handout 3: Macroscopic and Microscopic Activity: Observing Bones J.2.1 Evaluation: Bone Development and Structure (submit with J.2.1 Student Handout 3) Microscope J.2.1: Student Activity Student Prepared bone slides Bones of various animals (dried and cleaned) Vinegar Container with lid, large enough to hold bone Procedure: 1. Respond to the Question to Consider as directed by your instructor. 2. Using J.2.1 Student Handout 1: PowerPoint® Notes: Bone Development and Structure, complete the notes from the PowerPoint®, Bone Development and Structure. 3. Using J.2.1 Student Handout 2: PowerPoint® Notes, label the parts of the bone using the PowerPoint® Bone Development and Structure as a guide. Space to take additional notes is provided. 4. Follow the directions on J.2.1 Student Handout 3: Macroscopic and Microscopic Activity: Observing Bones to make macroscopic and microscopic observations of bones. 5. Complete the questions as you are working through the activity. 6. Finally, submit the completed questions to J.2.1 Student Handout 3: Macroscopic and Microscopic Activity: Observing Bones and the J.2.1 Evaluation Rubric as directed by your instructor. J.2.1: Student Activity Directions Student J.2.1 Student Handout 1: PowerPoint® Notes Purpose, Function, Skeletal System Parts Bone Development and Structure Name: There are ______________________ main types/shapes of bone in the body: Long Bones: Examples: Short Bones: Examples: Flat Bones: Examples: Irregular Bones: Examples: Sesamoid Bones: Examples: Sutural Bones – unnamed and not a major classification of bone; determined by location and usually found where bones are being fused; extra bone pieces that occur within a joint as in the cranium; irregular, isolated bones that appear in addition to usual centers of ossification and, although unusual, are not rare Macroscopic Anatomy: Tissues Periosteum: Provides blood supply to the bone Allows for points of muscle attachment J.2.1: Student Handout 1 Student Cortical Bone: While it seems solid, it is actually a canal based matrix Trabecular Bone: More porous, lightweight Irregular arrangement allows for maximum strength Medullary Cavity: Contains red bone marrow (majority of blood cells are formed) and yellow bone marrow (fatty tissue) Hyaline Cartilage: Fibrocartilage: Elastic Cartilage: Cells ____________________ – bone building cells ____________________ – bone building cells ____________________ – bone removing cells, macrophages ____________________ – proteins and collagen; assist in bone strength and rigidity ____________________ – matrix of support for tissues Bone Structure Each bone in the body is marked with projections, depressions, openings and attachment points, depending on its purpose and function. The anatomy of the bone allows it to meet the purpose of the skeletal system for movement and flexibility. Projections: these are locations where muscles and ligaments attach J.2.1: Student Handout 1 Student Projections: these are locations where joints are formed Depressions: these locations allow blood and nerves to pass through Bone Formation/Development Bones continually grow and develop over the life of the organism. ________________________ – bone tissue formation ________________________ – hardening of bone from cartilage over time Intramembranous Ossification Endochondral Ossification J.2.1: Student Handout 1 Student J.2.1 Student Handout 2: PowerPoint® Notes Purpose, Function, Skeletal System Parts Labeling the Bone Name: Directions: Use this handout to take notes on the composition and parts of the bone. J.2.1: Student Handout 2 Student J.2.1 Student Handout 3: Observing Bones Purpose, Function, Skeletal System Parts Macroscopic and Microscopic Activity Name: Microscopic Activity: Observation Procedure: 1. Obtain a 40X zoom or stronger microscope and a prepared bone slide. 2. Draw what you see at each magnification on the microscope 4X Magnification 10X Magnification J.2.1: Student Handout 3 Student 40X Magnification 1. Describe below what the bone looks like when magnified at 40X Magnification. 2. Once you have described what you see, research the term “bone histology” online to identify the parts of the bone cell. Label them on the 40x diagram Macroscopic Activity: Bending Bones Procedure: 1. Obtain dry, clean bones about the same size and shape. Bones of any species are appropriate for this activity. Make sure they are free of meat. 2. Place one bone in a jar filled with vinegar, capping the jar when bone is completely covered. 3. Wrap the second bone in plastic wrap. Keep it next to the jar. 4. Allow the bones to remain untouched for three days. 5. Unwrap the bone NOT in vinegar. Try to bend it. Then answer the questions below: J.2.1: Student Handout 3 Student Describe the feel of this bone? Does it bend easily? 6. Using the bone which was soaked in vinegar, rinse and dry the bone. Try to bend it. Then answer the questions below: a. Describe the feel of this bone? b. Does it bend easily? c. What does the vinegar do to the strength of the bone? d. What mineral is most impacted by the mild acid present in the vinegar? Why? 7. Consider the microscopic bone structure that you observed earlier. What part of the bone structure is impacted by the acid, and how could this impact overall skeletal structure and health in a living creature? J.2.1: Student Handout 3 Evaluation J.2.1 Evaluation Rubric: Bone Development and Structure Name: PARAMETER POSSIBLE POINTS All questions answered fully 50 Answers to Nearly all questions answered/student 40 Questions could have provided more detail Presented in Student did not answer all questions, J.2.1 answers lacked detail. Student Handout 3 Multiple questions not answered, 20 inadequate content. 0 – not 30 complete Student participated fully in activity Activity Performance 10-0 and stayed on task. Student was respectful and careful 10-0 with materials. Student followed directions. 10-0 Student cleaned up after activity 10-0 Spelling 5-0 Grammar 5-0 English Language J.2.1: Evaluation SCORE Student J.3.1 Student Activity: Common Names for Animal Parts Name: Purpose: Identification of skeletal anatomy on a variety of species is important for a veterinary technician. In this activity you will identify the skeletal anatomy on a horse, dog and chicken. Key Point: Identification of bones, bone structure and bone location is essential to develop a total understanding of the skeletal system and general body supporting structure. Know and Do: Compare and contrast skeletal anatomy of biped and quadruped animal species. Identify locations of common bones on three species of animals. Terminology: Biped: an animal which stands on two feet; includes the kangaroo, the human and almost all bird species Quadruped: an animal which stands on four feet; includes cattle, sheep, dogs, cats and the majority of animal species Materials: J.3.1 Student Activity Directions J.3.1 Student Handout 1: Matching Bones to Location J.3.1 Student Handout 2: Labeling Parts and Functions J.3.1 PowerPoint® Presentation: Common Names for Parts of Animals: Comparative Anatomy Notes with pictures of Horse, Dog and Chicken J.3.1 Evaluation: Common Names for Parts of Animals: Comparative Anatomy Enlarged copies of horse, dog and chicken (one per group) Tape or push pins J.3.1: Student Activity Student Animal parts cards (horse, dog and chicken) Tissue covered animals (i.e. horse, dog, chicken, optional) Large standing stuffed animals (horse, dog, chicken-optional Procedure: 1. Respond to the Question to Consider as directed by your instructor. 2. Complete J.3.1. Student Handout 1: Matching Bones to Location as directed by your instructor. 3. Your instructor will break you into groups. 4. Open to the diagram of the Horse in J.3.1 PowerPoint® Presentation: Common Names for Animal Parts: Comparative Anatomy Notes. Refer to J.3.1. Student Handout 2: Labeling Parts and Functions and refer to the enlarged poster-sized copy of the Horse. 5. As a class, you will complete the diagram of the Horse while following along and labeling in your groups on your own PowerPoint® Presentation Notes, on your Student Handout 2: Labeling Parts and Functions and on your enlarged poster. 6. In your groups, you will repeat the procedure above for the Dog and Chicken on your own. 7. The instructor may review the diagrams as a class. 8. Submit your own copy of J.3.1. PowerPoint® Presentation Notes and J.3.1 Student Handout 2: Labeling Parts and Functions for your assessment grade. J.3.1: Student Activity Directions Student J.3.1 Student Handout 1: Matching Bones to Location Common Names for Animal Parts: Comparative Anatomy Name: Directions: Look carefully at the bones below and answer the following questions: Bone 1 Bone 2 Bone 3 1. From the shape, make an educated guess as to where each bone is located in the body? a. Bone 1 b. Bone 2 c. Bone 3 2. Which side of the body do the bones belong to and why? d. Bone 1 e. Bone 2 f. Bone 3 3. What features in the bones allow you to determine where they should be in the body and how they should be positioned? g. Bone 1 h. Bone 2 i. Bone 3 J.3.1: Student Handout 1 Student J.3.1 Student Handout 2: Labeling Parts & Functions Common Names for Animal Parts: Comparative Anatomy Name: Each group will receive a packet of body part cards. As a group, place the cards on the pictures of animals. As each piece is placed, discuss and review the bone type and purpose. 1. Answer the following questions next to the part below. Femur is done for you. a. What type of bone is this? (long, flat, sesamoid, short, irregular) b. What is the purpose of this bone in this animal? (support, protection) c. Is this bone unique to this individual or do all species have this bone? 2. Repeat the procedure for all three skeletal species. 3. Optional: Using either stuffed animals or body outline pictures, students will perform the same lab on a tissue covered animal. Compare differences in animals and recognize the importance of understanding where bones are located in a body which is covered in flesh. Horse: A. Femur (Thigh)-Letter Q, long bone, support, not unique A. Scapula B. Thoracic vertebrae C. Skull D. Chest E. Tibia/Fibula F. Pelvis G. Knee H. Forearm I. Coccygeal vertebrae J. Cannon bone K. Proximal sesamoid L. Pastern, Coronet, Hoof M. Ribs (Heart girth) N. Stifle O. Gaskin P. Pastern/Coffin bone Q. Hock J.3.1: Student Handout 2 Student Dog 1. Cervical vertebrae 2. Sternum 3. Scapula 4. Thoracic vertebrae 5. Carpals/Lumbar vertebrae 6. Coccygeal vertebrae 7. Forelimb and Hind limb 8. Skull 9. Pelvis 10. Tarsals Chicken 1. Cervical vertebrae 2. Nasal cavity 3. Bridge of nose 4. Upper beak 5. Mandible 6. Humerus 7. Occipital 8. Eye socket J.3.1: Student Handout 2 Evaluation J.3.1 Evaluation Rubric: Common Names for Animal Parts Name: 4 Horse Diagram PowerPoint slide 3 2 1 Diagram is fully Diagram is 75% Diagram is 50% Diagram is complete. complete. complete. significantly completed with incomplete. all parts labeled Dog Diagram PowerPoint slide Diagram is fully Diagram is 75% Diagram is 50% Diagram is complete. complete. complete. significantly completed with incomplete. all parts labeled Chicken Diagram Diagram is fully Diagram is 75% Diagram is 50% Diagram is PowerPoint slide complete. complete. complete. significantly completed with incomplete. all parts labeled. Handout 2: Horse Handout 2: Dog Handout 2: Chicken Group work Student answered Student Not all questions Multiple questions all questions completed most answered and/or unanswered; little thoroughly. of the questions. incomplete detail or answers given.. information. Student answered Student answered Student answered Student answered all questions all questions all questions all questions thoroughly. thoroughly. thoroughly. thoroughly. Student answered Student answered Student answered Student answered all questions all questions all questions all questions thoroughly. thoroughly. thoroughly. thoroughly. Student actively Student was a Student Student rarely participated as a positive occasionally participated in the group member. participant most participated but group work. of the time. let other members do much work. Final Score: ___ points/28 points J.3.1: Evaluation Student J.4.1 Student Activity: Dental Structures of Animals Anatomy of the Tooth Name: Purpose: The dental structures of omnivores, herbivores and carnivores vary based on many reasons, and this impacts the ability of the animal to eat, groom and defend itself. Understanding the dental structures, the tooth placement and the types of teeth allows the veterinarian to care for the mouth and body of an animal more easily, as well. Key Point: Herbivores, omnivores and carnivores have similarities and differences in tooth structure that reflect the eating habits of the species. Know and Do: Design a presentation for the class to teach your specific animal to others. Compare and contrast herbivores, omnivores and carnivores based on dental their anatomy. Terminology: Deciduous: falling down or falling out, in regards to dental work; non-permanent teeth Eruption: the act of leaving one location through a barrier Incisors: front teeth on the upper and lower jaw Molars: teeth in the back of the mouth, specifically used for grinding Permanent teeth: teeth that will remain for the majority of the life of the animal Materials: J.4.1 Student Activity Directions: J.4.1 Student Handout 1: PowerPoint® Notes: Dental Structures of Animals J.4.1 Student Handout 2: Tooth Research J.4.1 Student Handout 3: Dental Identification Information by Species Chart J.4.1: Student Activity Student J.4.1 Evaluation Rubric: Dental Structures of Animals Internet Poster board Markers Printer Glue Clay or play dough Procedure: 1. Respond to the Question to Consider as directed by your instructor. 2. View J.4.1 PowerPoint® Dental Structures of Animals: Anatomy of the Tooth with your instructor. Take notes from the PowerPoint® on J.4.1 Student Handout 1: Dental Structures of Animals (This is a two-page handout). 3. Working individually or in small groups assigned by your instructor, complete J.4.1 Student Handout 2: Tooth Research. 4. Create a presentation utilizing the information as directed in J.4.1 Student Handout 2: Tooth Research. 5. Give the presentation orally for the class. 6. Utilize the chart on J.4.1 Student Handout 3: Dental Identification by Species Chart to record information from your classmates’ presentations. 7. You will be evaluated utilizing J.4.1 Evaluation Rubric. Give your instructor a clean copy before presenting. J.4.1: Student Activity Directions Student J.4.1 Student Handout 1: PowerPoint® Notes Dental Structures of Animals: Anatomy of the Tooth Name: Purpose of Teeth: Jaw: Type of Tooth Location Incisor Canine Premolar Molar J.4.1: Student Handout 1 Function Other information Student J.4.1 Student Handout 1: PowerPoint® Notes Dental Structures of Animals: Anatomy of the Tooth Define and describe the following parts of the tooth: Crown: Dentin: Enamel: Gingiva/gum: Periodontal Ligament: Pulp Canal: Root: J.4.1: Student Handout 1 Student J.4.1 Student Handout 2: Tooth Research Dental Structures of Animals: Anatomy of the Tooth Name: 1. Working individually or in groups of two, select a type of animal to research and present to the class. Groups cannot duplicate species until after all species have been selected. 2. Determine the following and make a presentation to the class: a. Number of deciduous teeth and placement in the mouth b. Number of permanent teeth and placement in the mouth c. Time of eruptions for both deciduous and permanent teeth: i. Incisors ii. Canines iii. Premolars iv. Molars d. Diet of the animal and how the diet relates to the mouth and dental anatomy 3. Provide pictures, diagrams and examples to enhance the presentation. Use internet resources and materials provided in class, like clay. a. Include the following in some way: i. Visuals of individual teeth ii. Visuals of entire mouth with tooth placement iii. Visuals of special dental features of the species (if applicable) J.4.1: Student Handout 2 Evaluation J.4.1 Student Handout 3: Dental Identification Information by Species Chart Dental Structures of Animals Name: Directions: Utilizing the presentations by your classmates, complete the following chart. Species No. of No. of Eruption time Eruption time for Deciduous Permanent for Deciduous Permanent Placement in Placement in Mouth Mouth Incisors Incisors Canines Canines Premolars Premolars Molars Molars Incisors Incisors Canines Canines Premolars Premolars Molars Molars Cat Dog J.4.1: Student Handout 3 Typical Diet Special features or characteristics Evaluation Species No. of No. of Eruption time Eruption time for Deciduous Permanent for Deciduous Permanent Placement in Placement in Mouth Mouth Incisors Incisors Canines Canines Premolars Premolars Molars Molars Incisors Incisors Canines Canines Premolars Premolars Molars Molars Incisors Incisors Canines Canines Premolars Premolars Molars Molars Llama Rabbit Rodent J.4.1: Student Handout 3 Typical Diet Special features or characteristics Evaluation Species No. of No. of Eruption time Eruption time for Deciduous Permanent for Deciduous Permanent Placement in Placement in Mouth Mouth Incisors Incisors Canines Canines Premolars Premolars Molars Molars Incisors Incisors Canines Canines Premolars Premolars Molars Molars Incisors Incisors Canines Canines Premolars Premolars Molars Molars Ruminant Degu Pig J.4.1: Student Handout 3 Typical Diet Special features or characteristics Evaluation J.4.1 Evaluation Rubric: Dental Structures of Animals Name: Category Participation Presented information requested Pictures, Diagrams, Examples Connection to diet Overall Presentation 4 3 2 1 Student constantly Student worked Student worked Student has worked with with the group on with the group on limited work and group and a limited basis and a limited basis and did not assist assisted with both assisted with both assisted with either with the presentation the presentation the presentation presentation or and research. and research. and/ or research. research. All questions were All but 1-2 All but 3-4 5 or more parts answered by the question(s) questions were of the group when the was/were answered answered by the presentation was presentation was by the group when group when the left out during made. the presentation presentation was the presentation. was made. made. Pictures, diagrams Pictures, diagrams Pictures, diagrams No pictures, and examples of and examples were and examples were diagrams or the dental present but not missing or limited examples were structures were well thought out or during the supplied to add presented to the explained to the presentation. to the class and were class to add to the well thought out. presentation. A clear connection While the Limited No connection was made connection was explanation was made between the diet made, it was not between diet and between the of the animal and totally clear how dental structure animal diet and the type of dental the structures and was presented to dental structure structure. diet were linked. the class. of the animal. The information The information The information The information was presented in was presented in a was made was lacking or such a way that way that students available but was was incorrect. the students could needed to ask difficult to take notes and additional understand when clearly understand questions to clarify presented. the species. information for understanding. Total Points J.4.1: Evaluation presentation. Points Earned Student J.5.1 Student Activity: Bone Breaks and Repairs Name: Purpose: Breaking of bones happens most often in youth and in old age, but the repair methods do not vary. In this lab you and your lab group will engineer a way to repair a broken bone after learning about the most common types of breaks. Key Point: Bone maintenance and repair depends on age, the type of break, the location and the severity of the damage. Know and Do: Identify different types of bone breaks and determine how they might occur. Analyze and develop the best way to fix a broken bone, and work with your group to “heel” the broken bone. Observe the heeling process, and determine if your engineered apparatus would work to re-grow the bone and provide strength and stability for the injured animal. Terminology: Incomplete bone break: break that occurs only a portion of the way through the bone (as opposed to complete) Complete bone break: bone which breaks all the way through (as opposed to incomplete) Simple bone break: bone which breaks at any point but does not pierce the skin (as opposed to compound) Compound bone break: bone which breaks and pierces the skin (as opposed to simple) Specific types of breaks: Comminuted bone break: complete break at multiple points; also known as “shattered” Greenstick bone break: incomplete break caused by bending of the bone in an arc shape; a break most commonly occurring in long bones Fissured or Linear bone break: incomplete break parallel to the bone and often caused by J.5.1: Student Activity Student bones pushing against other bones Oblique (non-displaced) bone break: complete break at a diagonal to the bone, when the bone does not shift apart Oblique (displaced) bone break: complete break at a diagonal to the bone, when the bone shifts apart; oblique breaks often lead to compound fractures but can be simple, as well Spiral bone break: break due to the twisting of the shaft of the bone; bone can be broken anywhere and can lead to oblique, comminuted or fissured breaks, as well Transverse bone break: complete break across the bone and perpendicular to the bone Materials: J.5.1 Student Activity Directions J.5.1 Student Handout 1: PowerPoint® Notes: Bone Breaks and Repairs J.5.1 Student Handout 2: Engineering a Bone Splint J.5.1 Evaluation: Bone Breaks and Repairs Wooden cooking skewers Spool wire or straight wire in various sizes T-pins, screws, anchors and hooks Wire clippers, scissors, screw drivers and clamps Additional items as needed to create and engineer a bone splint Copies of handouts from Foam Bone Dissection kit for each student in the class Procedure: 1. Respond to the Question to Consider as a writing or discussion prompt as directed by your instructor. 2. Watch carefully as your instructor breaks a bone. Participate in a class discussion about what happened to the bone and how you might go about helping it to mend. 3. Utilize J.5.1 Student Handout 1: PowerPoint® Notes: Bone Breaks and Repairs to take notes from the J.5.1 PowerPoint® Presentation: Bone Breaks and Repairs. J.5.1: Student Activity Directions Student 4. Your instructor will demonstrate how to perform the Foam Bone Lab. 5. Use J.5.1 Evaluation: Bone Breaks and Repairs to visually determine the different types of breaks and to prepare for the bone lab. 6. Utilize J.5.1 Student Handout 2: Engineering a Bone Splint to engineer a splint during the bone lab. 7. You will need to follow the instructions on the handout as a supplement to the Ward’s Foam Bone Lab Activities and design your own make-shift splint to stabilize a broken bone. 8. Complete the questions on Student Handout 2: Engineering a Bone Splint and submit them as directed by your instructor. J.5.1: Student Activity Directions Student J.5.1 Student Handout 1: PowerPoint® Notes Bone Breaks and Repairs Name: Types of Bone Breaks: Main Types: Complete: ____________________________________________________ Incomplete: ___________________________________________________ Compound: ___________________________________________________ Simple: _______________________________________________________ Types of Simple Breaks: _______________________________ – incomplete break caused by bending of the bone in an arc shape; a break most commonly found in long bones _______________________________ – complete break across the bone and perpendicular to the bone _______________________________ (non-displaced) - complete break at a diagonal to the bone, when the bone does not shift apart _______________________________ (displaced) – complete break at a diagonal to the bone, when the bone shifts apart; often leads to compound fractures but can be simple, as well _______________________________ – complete break at multiple points; also known as “shattered” __________________________ or _______________________ – incomplete break parallel to the bone and often caused by bones pushing against other bones _______________________________ – break due to twisting of the shaft of the bone; bone can be broken anywhere and can lead to oblique, comminuted or fissured breaks, as well. Bone Repair (______________________________ _____________________________ ______________________________ ______________________________) J.5.1: Student Handout 1 Student J.5.1 Student Handout 1: PowerPoint® Notes: Bone Breaks and Repairs Stages of Repair Name: Step 1 Step 2 Step 3 Step 4 Step 5 Step 6 J.5.1: Student Handout 1 Student Step 7 Step 8 Step 9 Step 10 Step 11 Step 12 J.5.1: Student Handout 1 Student J.5.1 Student Handout 2: Engineering a Bone Splint Bone Breaks and Repairs Name: 1. Break into groups of 2 or 3 students. 2. Obtain a Ward’s Science Foam Bone from your instructor. 3. Pick a type of bone break from your instructor and circle which type of break you will recreate with your Foam Bone i. Comminuted ii. Fissured iii. Greenstick iv. Oblique v. Spiral vi. Transverse 4. Describe the type of break that you have selected to replicate for the lab activity. 5. Break the bone. Follow the procedure as outlined in the Ward’s Science Foam Bone Lab, adapting the break to match what you have selected. Follow all safety precautions, including the use of goggles as needed. 6. Once your bone is broken, draw what the bone now looks like. 7. Design and develop a system to fix your bone and to keep the repair secure. You can use any material provided by your instructor. Work to engineer a system that will be the most beneficial to the animal and LEAST invasive for the animal. What materials do you need to accomplish your task? J.5.1: Student Handout 2 Student 8. Working as a group, develop and build your bone repair structure. Be sure to apply the Foam Bone Repair Bond to the break in order to determine if your design works to mend and hold the bone in place. Follow appropriate safety as outlined by the Foam Bone Lab. 9. Draw and describe the final apparatus that you design to help support your bone. Be sure to include any changes or problems that arose from your initial idea. 10. Place your bone in a safe location for 24 hours to allow the repair enough time to set. 11. At the beginning of the next period, spend five minutes looking at each design. Listen carefully as each group briefly explains how they engineered their structure. For each group, write a brief description about the type of break and the solution each group created. 12. After seeing the other repaired bones, remove the engineered structure. Draw and describe what your bone looks like AFTER the structure has been removed. J.5.1: Student Handout 2 Student 13. Test your bone by bending and bumping is lightly. Does it hold up to simple stresses and strain? 14. How could your design be changed to be less invasive for the animal or to work better? Would other designs work better? 15. Would your design work for other types of breaks? Why or why not? 16. Would this design work on other types of bones (i.e. different shapes and sizes of bones)? Why or why not? 17. Self-Evaluation: Assign a number score from 1-5 to each category below, with one meaning poor and five meaning excellent: a. _____My contributions as a team member b. _____How well my team worked together c. _____My team planning BEFORE beginning to create the splint d. _____Our success as a team at completing the task J.5.1: Student Handout 2 Evaluation J.5.1 Evaluation: Bone Breaks and Repairs Name: ________________________________________ Label each picture with the correct bone break: Comminuted, Fissured or Linear, Greenstick, Oblique (displaced), Oblique (non-displaced), Spiral, Transverse A. B. C. D. E. F J.5.1: Evaluation Student J.6.1 Skeletal Diseases and Genetic Issues: Disorders and Diseases Name: Purpose: Bone disease and disorders can impact the longevity and use of an animal. Key Point: Diseases and genetic issues of the skeletal system can impact bodily functions and/or specific parts of the skeletal system. Know and Do: Research common skeletal diseases and disorders found in animals. Teach classmates about common skeletal diseases and disorders found in animals. Identify and discuss common skeletal diseases and disorders found in animals. Terminology: No new terminology Materials: J.6.1 Student Activity Directions J.6.1 Student Handout 1: Disease Research J.6.1 Evaluation: Skeletal Diseases and Genetic Issues Bone Disorder Match Game, one set of cards per group Internet access Procedure: 1. Listen carefully as the instructor presents the Question to Consider as a writing or discussion prompt. 2. Your instructor will share a story. Participate in a classroom discussion about it. J.6.1: Student Activity Directions Student 3. Look at Student Handout 1: Disease Research. There is a series of diseases listed. Your instructor will assign one disease for you to research individually. 4. Research the disease and take notes regarding it. 5. Pair together with a classmate who researched the same disease. Share your findings 6. Working with your partner, choose five pieces of information that are the most important to know about your disease. 7. Share them with the class when directed. Take notes from the other speakers and record them in the table on J.6.1 Student Handout 1: Disease Research. 8. Play the Match Game with a partner. Have your instructor check the work. 9. Complete the form and turn in J.6.1 Evaluation: Skeletal Diseases and Genetic Issues for evaluation. J.6.1: Student Activity Directions Student J.6.1 Student Handout 1: Disease Research Diseases and Disorders Name: Pyramid Learning: Your instructor will select a topic for you to research individually for homework from the table below. 1. Research the assigned bone-related disease on the Internet. Find out what species is impacted most commonly and some common effects of the disorder. Write short notes on the disorder to be shared with the rest of the class. 2. Meet with anyone else in the class who has done the SAME disease or disorder and compare your research. Determine the five key pieces of information about the disease or disorder that you believe the class must know. 3. Split into groups with at least one representative of each disease and disorder in your group and share your research with others as you all record the top five pieces of information for each identified disease or disorder. My topic J.6.1: Student Handout 1 My research Student Bone disorder Top Five pieces of information Metabolic Bone Disease 1. 2. 3. 4. 5. Osteogenesis imperfecta 1. 2. 3. 4. 5. Osteochondrosis Dissecans 1. 2. 3. 4. 5. J.6.1: Student Handout 1 Student Canine Hip Dysplasia 1. 2. 3. 4. 5. Panosteitis 1. 2. 3. 4. 5. Hypertrophic 1. Osteodystrophy 2. 3. 4. 5. Osteopetrosis 1. 2. 3. 4. 5. J.6.1: Student Handout 1 Student Osteopenia 1. 2. 3. 4. 5. Fibrous Osteodystrophy 1. 2. 3. 4. 5. Epiphysitis 1. 2. 3. 4. 5. J.6.1: Student Handout 1 Evaluation J.6.1 Evaluation: Skeletal Diseases and Genetic Issues Name: Identify which disease is being described using the provided list. Some will be used more than once. Canine hip dysplasia metabolic bone disease osteopenia epiphysitis osteochondrosis dissecans osteopetrosis fibrous osteodystrophy osteogenesis imperfecta panosteitis hypertrophic osteodystrophy 1. This is the most common canine skeletal disorder. 2. Without the removal of dead bone cells, the bones overgrow and thicken with this condition. 3. Calcification does not occur during normal bone growth, but the cartilage continues to grow and becomes thicker than normal, and blood vessels cannot grow through the bone marrow. 4. Calcified cartilage is too hard, and blood vessels cannot grow through it. This causes death of the bone tissue and the bone marrow. 5. Overweight animals and larger breed animals are more at risk of this disorder. 6. This disease is the opposite of Osteoporosis. 7. This is the loss of bone mass in the Coffin Bone caused by calcium deficiency and limited use of Vitamin D. 8. Fragments of cartilage will break off from the bone and get lodged in the joints, leading to pain when the afflicted animal moves 9. This disease shows a change in the angles in the bones of the head and face. J.6.1: Evaluation Evaluation 10. Most animals which have this disorder are not kept in a herd because of their bone breaking proclivity. 11. Calcium levels in reptiles afflicted with this become extremely low. 12. This disease is the most severe disorder for breaking bones and can occur in any species. 13. This is a common disease in horses which love a high bran diet and low quality hay. 14. This disease is caused by osteochondrosis of the physeal plate. 15. This disease shows a lower bone mass and bone brittleness, but it is not as severe as osteoporosis. J.6.1: Evaluation Student J.7.1 Student Activity: Joints and Ligaments Skeleton and Body Movement Name: Purpose: Identifying the key parts of a chicken wing allows for observation of bone structure and the connections created with ligaments, tendons and fasciae. All of these components working together enable flight. Key Point: Joints, ligaments and tendons allow the bone components of the skeletal system to work together for body movement and support. Know and Do: Follow all procedures for lab safety and wear gloves to prevent contamination from salmonella. Identify and describe the parts of the external and internal anatomy of the chicken wing. Manipulate the chicken wing in order to see how tendons, ligaments and fasciae work together to allow movement to occur. Terminology: Joint: location where two bones meet Ligament: strong band of connective tissue which connect bone to other bone at joint Cartilage: soft, shock absorbing substance which covers the ends of bones and reduces bone-on-bone injury; also, connective tissue that becomes bone with age Tendon: connective tissues which connect muscles to bones at a joint. (When the muscle contracts, it pulls the bone in the direction of the contraction.) Materials: Student Activity Directions J.7.1 Student Handout 1: PowerPoint® Notes: Joints: They’re All about Movement J.7.1: Student Activity Student J.7.1 Student Handout 2: Chicken Wing Dissection Raw chicken wing (one per student) Paper plate or dissecting tray (one per student) Dissecting scissors (one per student) Dissecting knife/scalpel (one per student) Lab gloves (one or more pair per student) Paper towels, soap and water or bleach clean-ups for hands and table services Procedure: 1. Listen carefully as the instructor presents the Question to Consider. Respond through classroom discussion or writing prompt as directed. 2. Utilizing Student Handout 1: PowerPoint® Notes: Joints: They’re All about Movement, takes notes from the PowerPoint® Presentation: They’re All about Movement. 3. Review the dissection directions on J.7.1 Student Handout 2: Chicken Wing Dissection. 4. Perform the activity. Be sure to follow sanitary practices during and after the dissection so as to not get sick. 5. The activity, J.7.1 Student Handout 2: Chicken Wing Dissection, will be collected for evaluation. Pass it in with the J.7.1 Evaluation Rubric: Joints and Ligaments. J.7.1: Student Activity Directions Student J.7.1 Student Handout 1: PowerPoint® Notes They’re All about Movement Name: Types of Joints in the Body: Immovable: ________________________ joints Created by: Location(s): Slightly movable: ________________________ joints Occur when: Location(s): Freely movable: _________________________ joints There are six of these that include the following: the ball and socket joint, the condyloid joint, the saddle joint, the hinge joint, the pivot joint and gliding/plane joints. J.7.1: Student Handout 1 Student Name: Name: Location: Location: Use: Use: Name: Name: Location: Locations: Name: Use: Use: Location: Use: Name: Location: Name: Name: Location: Location: Use: J.7.1: Student Handout 1 Use Use: Student Ligament Definition: Locations: Tendons Definition: Locations: Fasciae Definition: Locations: Cartilage Definition: Locations: J.7.1: Student Handout 1 Student J.7.1 Student Handout 2: Chicken Wing Dissection Joints and Ligaments: Skeleton and Body Movement Name: 1. Follow all safety procedures outlined by your instructor for the use of scalpels and scissors during dissecting. 2. Wear laboratory gloves to prevent contamination from salmonella which may be present on the raw chicken. 3. Wash your hands thoroughly with soap and water upon completion of this lab. Also, wipe down all surfaces with 10% bleach solution or prepared bleach-based towelettes after the lab is completed. 4. Obtain all needed materials from your instructor: a. Chicken wing on dissecting surface b. Scalpel c. Dissecting scissors d. Gloves 5. Rinse the chicken wing under cool water and pat it dry with paper towels prior to beginning the dissections. 6. Lift your chicken wing and stretch it out. Identify whether the chicken wing is from the left side or the right side when looking at the bird. Figure J.7.1.a shows the right wing on a chicken. Figure J.7.1.a 7. A chicken wing is the equivalent of a human arm. Refer to figure J.7.1.a to answer the following questions: What types of joints (described in Student Handout J.7.1) are more likely found between the Scapula and Humerus: J.7.1: Student Handout 2 Student What types of joints (described in Student Handout J.7.1) are more likely found between the Humerus and Radius/Ulna: What types of joints (described in Student Handout J.7.1) are more likely found between the Radius/Ulna and Metacarpals: Describe the outside of your chicken wing. What tissue is located on the outside of the body? Tissue Description of Tissue Gently remove the skin from your chicken wing. Start by slipping your scissors under the skin closest to the humerus and working your way toward the metacarpals. This is delicate and is not easy. You will need to work your fingers between the skin. Pull hard away from the fatty layer below the skin. Describe the fatty layer you have just uncovered. Tissue Description of Tissue Now that you have carefully removed the skin, you will to begin to expose and observe muscle. What does it look like? Tissue J.7.1: Student Handout 2 Description of Tissue Student Now that you have removed the skin from your chicken wing, draw what you have exposed. You can use J.7.1.a as a guide to determine where each part of the wing is positioned. Chicken Wing without Skin Pick up the chicken wing and flex it at each joint. What happens with the muscles when the wing is extended and retracted? Find a tendon (shiny white in color) or a muscle and pull on it to see how it moves the chicken wing. Record in the above picture what impacts what. Remove the muscles and tendons from the bone to expose the joint, located where the scapula and humerus come together. Pull the bones apart at the joint. At this location there are two cruciate ligaments which hold the bones together. Describe what you see below: Tissue J.7.1: Student Handout 2 Description of Tissue Student Next observe where the humerus and radius/ulna come together. The bright white connective tissue is a tendon. Describe what you see and how the attachment(s) move the lower portion of the wing: Tissue Description of Tissue What other tissues do you see on your wing? (Hint, they look like reddish brown lines.) Tissue Description of Tissue Finally, draw what the bones of a bird look like once tissue has been removed from their surface. J.7.1: Student Handout 2 Student 8. CLEAN UP: Throw away all chicken parts and any other disposable items used. Wearing gloves, wash all equipment in warm, soapy water. Rinse well, and put on paper towels to dry. Be extra careful with all sharp objects. Return knives and scissors to your teacher. 9. After removing your gloves, wash your hands with soap and warm water to prevent cross contamination. 10. Final Thoughts: Chickens are basically flightless birds due to the size of their breasts, but other smaller birds have the same basic wing shape and muscle structure. Explain how bones, muscles, tendons and ligaments work together to move a wing. Why is this important to birds? J.7.1: Student Handout 2 Evaluation J.7.1 Evaluation Rubric: Skeleton and Body Movement Joints and Ligaments Name: PARAMETER POSSIBLE POINTS 18-20 Answered fully and correctly 20 16-17 Answered fully and correctly 17 Presented in 14-15 Answered fully and correctly 14 Student Activity 1 13 or FEWER Answered fully and correctly 0-10 Answers to Questions 0 – not complete Skin 2 Fat 2 Muscle 2 Tendon 2 Ligament 2 Blood vessel 2 Drawing and comparisons of chicken wing 12 Description of Tissue Types anatomy (Questions 11, 13 and 17) Final thought analysis: making connections 6 between chickens and other bird species Spelling 5 Grammar 5 Written Description of System Score = ___________ points/60 points Comments: J.7.1: Evaluation SCORE