Definition of Lower motor neuron

Reviewed on 3/29/2021

Lower motor neuron: A nerve cell that goes from the spinal cord to a muscle. The cell body of a lower motor neuron is in the spinal cord and its termination is in a skeletal muscle. The loss of lower motor neurons leads to weakness, twitching of muscle (fasciculation), and loss of muscle mass (muscle atrophy).

SLIDESHOW

Sex-Drive Killers: The Causes of Low Libido See Slideshow

Health Solutions From Our Sponsors