motor cell


Also found in: Medical.

motor cell

[′mōd·ər ‚sel]
(botany)
(physiology)
An efferent nerve cell in the anterior horn of the spinal cord.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.
References in periodicals archive ?
Phaseolus vulgaris adaxial and abaxial motor cells both responded to blue light irradiance with cell shrinkage; the only difference between the two regions was the intensity of the response which was likely dependent on the fluence rate [9].
Leaf movements in soybean occur as the adaxial and abaxial regions of pulvinar motor cells adjust their levels of turgor relative to each other.
Studies in pulvinar water potential differences between the two regions have indicated a more dominant role of the adaxial motor cells in enabling leaf movement.
As we give more information to the brain on the nature of motor cells firing to the muscle and the combination in which they work, a person will become more efficient at using these muscles," he says.
The global reduction of thalamocortical stimulation in PD, due to excessive output from the basal ganglia, may simply make voluntary movement more difficult by preventing the recruitment of sufficient cortical motor cells. The major cortical target of the motor circuit, the SMA, has been implicated in movement preparation and appears to make an important contribution to the 'readiness' or Bereitschaftspotential, an EEG waveform that precedes self-paced movement.
Nevertheless, the person is completely alert mentally, with no loss of brain function other than that of the motor cells that have been destroyed by the disease.
The molecular basis of long-term sensitization is now being examined in sensory and motor cells maintained in laboratory culture.