A Motor Unit Has a Small Number of Muscle Fibers

question 264

Multiple Choice

A motor unit has a small number of muscle fibers. Which of the following would likely be true of this motor unit. It:

• A) is can produce a great amount of forces
• B) is associated with muscles of the lower back
• C) is involved in delicate contractions
• D) has companion motor units that likely have many muscle fibers
• E) is a sheet of smooth muscle cells connected by gap junctions.

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