A skeletal muscle fiber can contract until it has shortened by about

A) 20 percent.
B) 25 percent.
C) 30 percent.
D) 40 percent.
E) 50 percent.


Answer: C

Anatomy & Physiology

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a. supply nutrients and O2 to the tubular cells. b. take up the substances that are reabsorbed by the tubules. c. supply substances that are secreted by the tubules. d. all of these answers. e. none of these answers.

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Anatomy & Physiology