Monday, February 14, 2011

THE FUNCTION OF EACH PART OF THE NEURONE

1. Axon - The long fibre that conducts impulse away from the cell body.

2. Dendron - The short fibre that conducts impulses towards the cell body.

3. Dendrites - The terminal branches found at the end of the axon and the dendrons which receive or transmit impulse.

4. Myelin sheath - The layer of fatty substances surrounding the axon or dendron that serves as an insulting layer.

5. Neurilemma - The thin membrane that provides nourishment for the nerve fibre.

6. Node of ranvier -The part of the axon not covered by the myelin sheath; helps to speed up the transmission of impulses.

No comments:

Post a Comment