Choose the Correct Statement Regarding Motor Units

question 41

Multiple Choice

Choose the correct statement regarding motor units.

• A) Muscle fibers of each motor unit are not mingled with those of other motor units.
• B) During a sustained contraction, all motor units are activated simultaneously.
• C) A motor neuron may control only two or three muscle fibers of the eye muscle(s).
• D) When muscles contract for sustained periods, maximal tension is maintained.
• E) Most motor neurons control fewer than five muscle fibers.

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