Jack broke his right leg in a football accident. He has had a cast on for about 2 months. Now that the cast is off, Jack has found that his right calf is significantly smaller than his left calf. Why is this?
A) The unused right calf atrophied.
B) When you break a bone, the attached muscle is also torn. Therefore, it gets smaller.
C) Calf muscles are composed of fast-twitch fibers and tend to grow larger over time.
D) The left calf probably hypertrophied in compensating for the broken leg during walking.
E) This is highly unusual and suggests some type of muscle disease.
Correct Answer:
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