Each muscle fiber has a single motor end plate, although motor neuron axons have many branches connecting the motor neuron to various muscle fibers.
Motor Units
Each muscle fiber has a single
motor end plate, although motor neuron axons have many branches connecting the
motor neuron to various muscle fibers. When an impulse is transmitted, all
con-nected muscle fibers contract at the same time. A motor unit is a functional structure consisting of
a motor neuron and the muscle fibers it
innervates (FIGURE 9-8).
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