Structure of a Motor Neurone

Structure of a Motor Neurone

A motor neurone is connected to relay neurones with the CNS (central nervous system). The cell body of the motor neurone (containing the nucleus) lies within the CNS. This is branched into structures called dendrites which allow connections to be made to many other neurones. A single long extension of the cell body is called an axon. This transmits the action potential (nerve impulse) along its length until the motor neurone connects with a gland or a muscle.

The axon is surrended by accessory cells, called Schwann cells, which are present at intervals along its length.…