There are 3 types of neurones. Sensory, motor and relay.
The motor neurone, this transmits impulses to the appropriate effectors, whether this is a muscle or a gland. The various parts of this neurone are as follows:
- Cell Body – contains the nucleus and most of the other cell organelles e.g. mitochondria
- Axons – conduct nerve impulses, they can be myelinated or unmyelinated
- Myelin Sheath – consists mainly of lipids and surround the axon.. it is formed from Schwann cells and provides electrical insulation.
- Nodes of Ranvier – these are gaps in the myelin sheath along the axon