Motor unit — Free Biology Illustration | GPAI | GPAI

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Motor unit — Free Biology Illustration | GPAI | GPAI

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Motor unit

Motor unit

Biology

Motor unit

Simplified diagram of a motor unit showing a single pale yellow or tan motor neuron with a round cell body, a long axon, and multiple terminal branches. The branching axon divides to contact several separate elongated skeletal muscle fibers arranged roughly in parallel. Each muscle fiber is depicted as a pink cylindrical cell with faint striations, emphasizing that one motor neuron innervates multiple skeletal muscle fibers.

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