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Glossary of Physiology Terms
Motor unit
Definition:
A motor unit is composed of a motor neuron and all of the muscle fibers (i.e., muscle cells) it innervates.Alternatively, a motor unit is a group of muscle fibers innervated by a single motor neuron.
Posted: Tuesday, February 4, 2014
Last updated: Tuesday, February 4, 2014
Last updated: Tuesday, February 4, 2014