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This chapter presents an overview of the muscular system. Included in Chapter 7 is a discussion of the structure and function of skeletal muscle tissue, cardiac muscle, and smooth muscle; the origins, insertions, and actions of skeletal muscle; and how this system responds to injuries and the effects of aging. There are three types of muscle tissue: skeletal muscle, cardiac muscle, and smooth muscle. The functions of skeletal muscle are:
1. Describe the properties and functions of muscle tissue. (p. 178) 2. Describe the organization of muscle at the tissue level. (p. 178) 3. Identify the structural components of a sarcomere. (pp. 179–182) 4. Explain the key steps involved in the contraction of a skeletal muscle fiber. (pp. 182–184) 5. Compare the different types of muscle contractions. (pp. 187–189) 6. Describe the mechanisms by which muscles obtain and use energy to power contractions. (pp. 189–192) 7. Relate types of muscle fibers to muscular performance. (pp. 193–195) 8. Distinguish between aerobic and anaerobic endurance and explain their implications for muscular performance. (p. 192) 9. Contrast skeletal, cardiac, and smooth muscles in terms of structure and function. (pp. 194–195) 10. Identify the principal axial muscles of the body together with their origins and insertions. (pp. 199–204) 11. Identify the principal appendicular muscles of the body, together with their origins and insertions. (pp. 204–216) 12. Describe the effects of exercise and aging on muscle tissue. (p. 216)
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