Question

a motor neuron usually innervates ____ muscle fiber(s) and a muscle fiber is usually innervated by ____ motor neuron(s).
o many; one
o many; many
o one; many
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Explanation:

A motor neuron forms connections with multiple muscle fibers to coordinate muscle contraction. However, each individual muscle fiber typically receives input from only one motor neuron to ensure precise control of muscle activity.

Answer:

A. many; one