motor fiber


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Related to motor fiber: Gamma motor neuron

motor fiber

one of the fibers (axons) in the cranial and spinal nerves that transmit impulses to and cause contraction of muscle fibers.

motor fiber

Any of the axons of motor neurons that innervate skeletal muscles.
See also: fiber
References in periodicals archive ?
On the other hand the corticobulbar tract (CBT) is commonly used to describe the pathway taken by motor fibers innervatiog the cranial nerve nuclei, especially trigeminal, facial, hypoglossal motor nuclei, nucleus ambiguus, and spinal accessory nucleus.