If a muscle contracts, all of the muscle fibers within that muscle must be contracting.

Name: If a muscle contracts, all of the muscle fibers within that muscle must be contracting.
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Question

Quizplus · Accepted Answer

Within a muscle, there are different types of muscle fibers that can contract independently of each other. This allows for varying degrees of muscle tension and control. Therefore, not all the muscle fibers within a muscle must contract at the same time.

If a Muscle Contracts, All of the Muscle Fibers Within