Biopsychology Flashcards
1
Q
what are the two parts of the human nervous system? (2)
A
- central nervous system (CNS)
- peripheral nervous system (PNS)
2
Q
what are the parts of the CNS? (2)
A
- brain
- spinal cord
3
Q
what are the parts of the PNS? (2)
A
- somatic nervous system (SNS)
- autonomic nervous system (ANS)
4
Q
what are the parts of the ANS? (2)
A
- sympathetic nervous system
- parasympathetic nervous system
5
Q
what are the parts of the nervous system? (6)
A
- the brain
- the spinal cord
- somatic NS
- autonomic NS
- sympathetic NS
- parasympathetic NS
6
Q
what is the brain? (2)
A
- made up of two hemispheres
- outer layer = cerebral cortex
7
Q
what does the spinal cord do? (2)
A
- passes messages to/from the brain and the PNS
- responsible for reflexes
8
Q
what does the somatic NS do? (2)
A
- transmits info from senses to the CNS
- directs muscles to act
9
Q
what does the autonomic NS do? (2)
A
- transmits automatic signals
E.G. breathing
10
Q
what is the sympathetic NS involved in? (1)
A
- involved in preparation for ‘fight or flight
11
Q
what does the parasympathetic NS do? (2)
A
- returns body to resting state
- involved in ‘fight or flight’ response
12
Q
what are the part of the neuron? (8)
A
- cell body
- dendrite
- nucleus
- axon
- node of ranvier
- myelin sheath
- schwann cell
- axon terminal
13
Q
what does the cell body contain? (1)
A
- contains the nucleus (chromosomes)
14
Q
what do dendrites do? (2)
A
- extend from cell body
- carry electrical impulses from other neurons towards the cell body
15
Q
what does the axon do? (2)
A
- carried the impulses AWAY from the cell body
- is covered by a fatty layer (myelin sheath)
