Psych M.D. - Motor Neurons


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Term: motor neurons
Definition (Myers): neurons that carry outgoing information from the central nervous system to the muscles and glands.1
Definition (alternative): motor neurons (also called motoneurons) are efferent neurons that originate in the spinal cord and synapse with muscle fibers to facilitate muscle contraction and with muscle spindles to modify proprioceptive sensitivity2.
Contextual explanation:
Motor neurons carry information to the muscles and glands, while sensory neurons carry information to the brain and spinal cord. Interneurons connect the two types of neurons: afferent and efferent. The motor neuron is considered an efferent neuron - meaning, a neuron that carries information from the central nervous system to the muscles and glands.
Related terms and concepts:
3Psych M.D. - Motor Neurons - The Neuron4
(note: has some spelling errors)
Related websites:
Sources:
  1. Myers, D.G. (2003). Psychology. New York City: Worth Publishers.
  2. Science Daily, Initials. (2009). Motor neuron. Retrieved from http://www.sciencedaily.com/articles/m/motor_neuron.htm
  3. Gianfrancesco, O. (2009). Neurons [Television series episode]. In (Executive producer), OlyGlan.
  4. MDA, Initials. (2008, April). Facts about als. Retrieved from http://www.als-mda.org/publications/fa-als.html
Edited by: Jessica
Date of last edit: 11/5



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