Skeletal & Muscular Systems
Form and Movement
Engage
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What is Osteoporosis?????
Complete the osteoporosis
questionnaire.
Engage
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Deboned
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What would happen if humans did not have
bones? Your body would be limp like a rag doll.
Could you stand up?
Could you walk?
Without bones in your body, you would be like
the blob.
As a class we will observe two bones that were
soaked in two different solutions.
Deboned
Similarities
Differences
Explore
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The Calcium Test
Students will test various types of
materials to determine the presence or
absence of calcium.
Explore
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Computer Lab
http://www.medtropolis.com/VBody.asp
You will visit the above website and
answer questions while navigating
through the narrated skeletal system
section
Explain
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1.
2.
3.
4.
5.
What are the 5 Main Functions of the
Skeleton
provide structure and support for body
protect internal organs
make blood cells
store minerals
attachment for muscles for movement
Skeletal Systems
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Exoskeleton
Endoskeleton
Exoskeleton
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external skeleton
Arthropods and Mollusks
Arthropod’s skeleton is made of a
material called chitin and must be shed
to permit growth.
Mollusk’s skeleton is made by the
mantle from calcium carbonate.
Endoskeleton
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Internal skeleton
Grows with the organism
Made of cartilage or a combination of cartilage and
bone.
Ossification – replacing cartilage with bone around 7
months before birth
Osteoclasts – break down bone
Osteoblasts – form bone tissue
Contains 2 parts : axial and appendicular areas.
Skull
Axial
Skeleton
Clavicle
Sternum
Ribs
Vertebral
column
Scapula
Humerus
Radius
Pelvis
Ulna
Carpals
Metacarpals
Phalanges
Femur
Patella
Fibula
Tibia
Tarsals
Metatarsals
Phalanges
Appendicular
Skeleton
Structure of Bone
Spongy bone
Haversian canal
Compact bone
Compact
bone
Periosteum
Bone
marrow
Spongy bone
Osteocyte
Artery
Periosteum
Vein
Structure of Bones
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Solid network
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Living cells
Protein fibers
Deposits of Calcium Salts
Part of Bone
1. Marrow
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Yellow – fat cells
Red – RBC, WBC, Platelets
2. Periosteum - Outer connective tissue – tough
3. Compact bone
Haversian Canals
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Tubes carrying blood vessels and nerves
4. Spongy bone
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Less dense; inside compact bone; ends of long bones and
middle of short, flat
Structure of Bone
Spongy bone
Haversian canal
Compact bone
Compact
bone
Periosteum
Bone
marrow
Spongy bone
Osteocyte
Artery
Periosteum
Vein
Joints
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One bone attaches to another
Three types
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Immovable (Skull)
Slightly Movable
Freely Moveable
Freely Moveable Joints
Ball-and-Socket Joint
Pivot Joint
Clavicle
Humerus
Ball-andsocket
joint
Radius
Hinge Joint
Scapula
Pivot
joint
Saddle Joint
Ulna
Humerus
Femur
Patella
Fibula
Metacarpals
Tibia
Hinge
joint
Saddle joint
Carpals
Joint Structure
Muscle
Tendon
Femur
Patella
Bursa
Ligament
Synovial fluid
Cartilage
Fat
Fibula
Tibia
Joint Structure
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Tendon – Muscle to Bone
Ligament – Bone to Bone
Synovial Fluid – lubricating film
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Bursa – small sac of synovial fluid
Bursitis – inflammation of a bursa
Bone Diseases
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Osteoporosis
Leukemia
Vitamin D deficiency
Elaboration
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Best Bones Interest Project Questionnaire