L32- Homeostsis Flashcards
1
Q
what are the two sub-divisions of the nervous system?
A
- central nervous sytem= brains and spinal cord
- peripheral nervous sytem= everything outside CNS
2
Q
What are the two types of cells in the NS?
A
Neurones and Glial cells
3
Q
What is the role of a neurones?
A
to transmit electrical impulses
4
Q
what are the 4 different types of glial cells?
A
- Schwann cells
- Oligodendrocytes
- Astrocytes
- Microglia
5
Q
What are the 4 structures of a neurone?
A
- Cell body
- Dendrites
- Axon
- Axon terminal
6
Q
What is an action potential?
A
they are electrical impulses that travels along the axon .
7
Q
How is an action potential produced?
A
due to depolarisation of the axon, ions moving across the axon membrane
8
Q
what system is the Autonomic nervous system and Parasympathetic Nervous System part of?
A
peripheral then autonomic NS
