motor nerve

(redirected from Motor nerves)
Also found in: Dictionary, Thesaurus, Medical.
Related to Motor nerves: Neurons

motor nerve

[′mōd·ər ‚nərv]
(neuroscience)
A nerve composed wholly or principally of motor fibers.
References in periodicals archive ?
It is intended to locate and map motor nerve roots and their peripheral extensions originating from spinal levels C3-T1 and L2-S2.
It is an inflammatory disease of CNS oligodendrocytes, with an onset age of between 20 and 50 years, which can cause de-myelination (and, hence, conduction block) of the fascicular portion of any of the ocular motor nerves, although it typically affects other pathways in the brain (eg the MLF) or of CNS origin (eg the optic nerve), and so is more likely to cause other symptoms in this age group.
When confronted with a patient in a 'comatose state', the diagnosis of Guillain-Barre syndrome does not seem apparent, particularly when there is motor nerve inexcitability to a supramaximal stimulus, an unusual finding in GBS which was present in our patients.
He still considered ligaments and tendons as equivalents of nerves, and stated that while sensory nerves were soft and arose from the cerebrum, motor nerves arose from the spinal cord and were hard; nerves arising from the junctional area could be either soft or hard.
These findings suggested a predominantly axonal polyneuropathy involving both sensory and motor nerves.
Motor nerves supply the muscles of mastication (temporal and masseter), and the tensors of the soft palate and tympanic membrane.
Consider tinea pedis (athlete's foot) or peripheral neuropathy, which is any disorder of the sense and motor nerves outside of the brain and spinal cord.
It will be the first time Japanese suffering from the disease have participated in the conference, the 11th International Symposium on ALS-MND, an incurable progressive illness causing the gradual atrophy of muscles and motor nerves.
In one study of individuals with this kind of leg pain, MRI scans showed plaques, or scarred areas, on the motor nerves that run down the back or posterior part of the spinal cord to supply the leg muscles.
The nerves in the brain for movement, called upper motor nerves (UMNs), are grouped together along a strip of brain referred to as "the motor strip" (See Illustration 1).
1 MMN is caused by disorder/malfunctions in the conduction pathway of motor nerves, limiting transmission of electrical impulses.
Others are motor nerves, carrying signals away from the central nervous system to stimulate responses from tissues, such as muscles.