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  4. Stimulation of a muscle fiber by a motor neuron occurs at

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Q. Stimulation of a muscle fiber by a motor neuron occurs at

AIPMTAIPMT 2014Locomotion and Movement

Solution:

A neuron that transmits a stimulus to muscle tissue is called motor neuron. A motor unit consists of a single motor neuron (nerve cell) and the muscle fibres it innervates. The portion of the muscle plasma membrane (sarcolemma) that lies beneath the nerve endings (axon