Topic 19: Nervous System Overview Flashcards
1
Q
What are the 2 divisions of the nervous system?
A
Central and Peripheral
2
Q
What is the function of the central nervous system? (2)
A
- command centre
- processes and integrates info
3
Q
What structures does the CNS include? (2)
A
- brain
- spinal cord
4
Q
What structures does the peripheral nervous system include? (2)
A
- cranial nerves to and from brain
- spinal nerves to and from spinal cord
5
Q
What are the 2 divisions of the PERIPHERAL nervous system?
A
- sensory/afferent division
- motor/efferent division
6
Q
What is the sensory/afferent division of PNS?
A
- has sensory receptors that detect stimuli
7
Q
What is a stimulus?
A
- change in internal or external environments
8
Q
What is the motor/efferent division of PNS? (2)
A
- nerve convey impulses away from CNS
- innervates (supplies nerves to) effectors = muscles and glands (endo or exo)
9
Q
General diagram of a stimuli
A
10
Q
What does the motor/efferent division of PNS divide into?
A
- somatic and autonomic
11
Q
What does the autonomic division divide into?
A
sympathetic - fight or flight
parasympathetic - rest and digest
12
Q
Digram of NS organization!!!
A
