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KengaRu [80]
3 years ago
9

Explain the contraction of a muscle from innervation from the moter unit

Health
1 answer:
Arada [10]3 years ago
6 0
A motor unit is made up of the motor neuron and a skeletal muscle fibers innervated by the motor neuron axonal terminals. when a motor unit is activated all of its fibers contract. In vertebrates,the form of a muscle contraction is controlled by the number of activated motor units.
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