The muscles in your fingers have a predominance of fast-glycolytic fibers, whereas the muscles of your feet have a predominance of slow-oxidative fibers. Which of the following statements accurately describes their differences?

A. Muscle fibers of the hands can generate greater tension than muscle fibers of the feet.
B. Muscle fibers of the feet have a greater abundance of myoglobin than do muscle fibers of the hands.
C. Muscle fibers in both locations are innervated by alpha motor neurons of the same diameter.
D. More oxidative phosphorylation occurs in the hands than the feet.
E. The muscle fibers of the feet have a greater abundance of glycogen than do the muscle fibers of the hands.


Answer: A

Anatomy & Physiology

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