(c) Motor neurone

Characteristics	Sensory neurone	Relay neurone	Motor neurone
Position in the body	Present in all parts of the body	Present in the brain and the spinal cord only	Present in all parts of the body
Position of cell body	In the middle of neurone	At the centre of neurone	At the end of neurone
Length of axon	Short	Very short	Long
Function	Transmits impulses from a receptor to the central nervous system	Transmits impulses from a sensory neurone to a motor neurone	Transmits impulses from the central nervous system to the effector

1. The basic unit of the nervous system is neurone.
2. The function of neurone is to carry impulses.
3. Each part of s neurone plays an important role in the transmission of nervous impulses.

1. The central nervous system is the control centre of the body.
2. This system consists of the brain and the spinal cord.
3. The brain controls all voluntary actions of the body like walking and talking.
4. The spinal cord controls the reflex actions such as sneezing.

1. The peripheral nervous system consists of all the nerves which connect the central nervous system to the receptor and effector located at other parts of the body.
2. The function of the peripheral nervous system is to transmit impulses from the sensory organ through central nervous system to the effector to respond accordingly.