Specialized nerve cells that innervate muscle fibers.
Nerve cell that comprises the pathway between the brain or spinal cord and an effector organ a muscle or gland.
A group of rare, progressive disorders in which the nerves that control muscle activity degenerate within the brain and spinal cord. This results in muscle wasting (atrophy) and weakness. The cause of motor neuron disease is unknown.
One of the units (neurons) that goes to make up the nerve pathway between the brain and an effector organ, such as a skeletal muscle. An upper motor neuron has a cell body in the brain and an axon that extends into the spinal cord, where it ends in synapses. It is thus entirely within the central nervous system. A lower motor neuron, on the other hand, has a cell body in the spinal cord or brainstem and an axon that extends outward in a cranial or spinal motor nerve to reach an effector.
A neuron that carries impulses from the central nervous system either to muscle tissue to stimulate contraction or to glandular tissue to stimulate secretion.
A type of neuron that transmits impulses to the muscles and glands.
Nerve cells found in the central nervous system are responsible for transmitting nerve impulses that govern the movement of muscles.