Name:_____________________ Activity 1.2.1: Identity – It’s Up to You Introduction When you think of your own identity, what comes to mind? Do you think about your appearance? Your personality? Perhaps your family and your cultural origins? The processes that occur in all of our bodies unite us as human beings. But it is the tiny differences – from what’s going on inside, to what we experience on the outside – that can make us truly unique. In Principles of the Biomedical Sciences, you learned that tissues are groups of similar cells working together to perform a specific function. Tissues are the living fabric that holds together the human design. In this course, you will examine the four main classifications of tissue – epithelial, connective, muscle and nervous – in more detail as we examine their specific role in human body systems. This activity will provide an introduction to bone, muscle and fat, all types of tissue that contribute to the framework of the human body. Today, you will begin to use clay to give your Maniken® an identity. As you learn to work with the clay and sculpt the cheeks, the eyes and the mouth, your model will come to life. Your Maniken® will be given a name and over the course of the year, a unique body of interrelating systems. Before we focus on the common processes of this amazing human machine, let’s focus on what makes us unique- from our appearance, to the structure of our bones and organs, down to the DNA inside of our cells. Procedure PART I: Tissue Review 1. With a partner, use the Internet to review the function and location in the body of each of the four basic categories of human tissue. Remember that even though there are four main classes, there are specific tissue types under each category. Take notes in your laboratory journal. 2. Use Inspiration software to create a concept map for human tissue. You must include the following words, but add connections and other terms as you see fit. o o o o o o o o o o o o o o Tissue Cells Epithelial tissue Connective tissue Muscle tissue Nervous tissue Neurons Cartilage Blood Tendons Ligaments Bone Skeletal muscle Fat (adipose) Name:_____________________ 3. Add at least 4 images or photographs to your concept map to help reinforce your words. 4. For each of the four types of tissue, assign one word that summarizes the role this type of tissue plays in the body. Using a different color, write this word in the box/bubble for that particular tissue type. Part II Microscopic Examination 5. Before you view these types of tissue, review how to use the microscope. Refer to the How to Use a Microscope Student Resource Sheet you received in PBS. Your teacher will provide you with an additional copy, if needed. 6. Carefully view the prepared slides of bone, adipose and skeletal muscle under both low and high power. You may have all slides at your station or you may have to rotate them around the room. 7. Using colored pencils, sketch what you see for each tissue type. Title:____________ Magnification:_____ Name:_____________________ 8. Answer conclusion questions 1 and 2. PART III: Building Identity- Giving Your Maniken® A Face Throughout the course, you will be asked to mark specific bones and structures on your Maniken®. For each bone, you will to identify and find the structure on your model. Use a pencil to number the bone (starting with #1). On a blank body system graphic organizer (skeletal view), assign the same number to the bone on the diagram and write a key at the bottom of the page (or next to the actual bone). Title your diagram “Skeletal System.” 9. Use the skull anatomy tutorial presented by GateWay Community College at http://www.gwc.maricopa.edu/class/bio201/skull/skulltt.htm to identify the following bones of the skull. Mark these bones on your Maniken® and on the skeletal system organizer. o o o o o o o Mandible Maxilla Zygomatic Process Frontal Bone Temporal Bone Occipital Bone Parietal Bone 10. Use the tutorial of the head and neck muscles presented by GateWay Community College at http://www.gwc.maricopa.edu/class/bio201/head/head1.htm and other Internet sources to find the location of the following muscles. o Orbicularis Oculi o Orbicularis Oris o Temporalis 11. Obtain another copy of the body system graphic organizer (skeletal view). 12. Sketch the muscles you researched in Step 11 in pencil on the organizer. Label the top of the diagram “Muscular System.” Label each muscle you add to the diagram. Make sure to add a brief statement of function. 13. Using your knowledge of directional terms, tissues, and the bones and muscles of the face, follow your teacher’s instructions to build the face of your Maniken®. You will use bone landmarks to apply muscle and fat to the face. 14. Take a look at what you have created. Is your Maniken® going to be male or female? With your partner, decide on a name for your Maniken®. Remember, he or she is going to be with you the entire year! 15. Answer the remaining conclusion questions. Name:_____________________ Activity 1.2.1: Identity - It’s Up to You Conclusion Questions 1. What do you notice is the main difference between the structure of the connective tissues and the structure of the epithelium? Make sure to note the organization of cells in these two tissue types. 2. Explain how the structure of epithelium and the structure of connective tissue, specifically bone, relate to the function of the tissue. 3. How does the distribution of tissues contribute to our appearance and to our identity? 4. Describe the role of fat in our cheeks and behind our eyes. 5. Think about the action of the muscles you have built on your maniken. Describe specific motions that you would not be able to complete if you damaged your temporalis, your orbicularis oculi or your orbicularis oris. How would this affect your ability to communicate? 6. Reflect on your own identity. What do you think helps make you, you?