Which are possible functions of skeletal muscles? a: Maintenance of posture b: Both highly coordinated and localized simple movements c: Temperature regulation d: Support of certain body organs e: Restricting the movement of material through certain body tracts   A. a, b, c B. a, b, c, d C. a, b, e D. a, b, c, e

Which of the following statements relating to the developmental aspects of muscles is false? a. All muscle tissue types arise from myoblasts b. Skeletal muscles become amitotic while smooth muscles regenerate throughout life c. Sarcopenia begins by age 30 and is irreversible d. Body strength per unit muscle mass is the same in both sexes  e. none of the above   Which of the following structures is located in the head region of the thick filament myosin? a. actin binding site b. ATP binding site c. ATPase enzyme d. all of the above e. none of the above

Which function does the circulatory system share with the heart? Select one: a. Regulates blood pressure b. Directs blood flow to tissues c. Transports hormones to all areas of the body d. Exchanges nutrients and wastes with cells

A muscle that appears striated is most likely? a. visceral b. cardiac c. skeletal O d. smooth

Explain how cats are able to jump from great heights without sustaining injuries. Do you think it is possible for humans to achieve such feats?