Brenda's arm will be in a cast for six weeks. What will most likely happen to the muscle cells in her arm?
a. They will weaken and die.
b. They will lie dormant.
c. They will hypertrophy and her strength will increase.
d. They will atrophy and she will lose strength.
e. They will hypertrophy and her muscular endurance will increase.
ANSWER: d
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