Key Terms — Nervous System Flashcards
1
Q
Neurones
A
Carry electrical impulses from a point to another
2
Q
Synapse
A
Gap between neurones
3
Q
Neurotransmitters
A
To pass electrical impulses chemically across a synapse
4
Q
Axon
A
5
Q
Myelin sheath
A
Insulate impulse to speed up
6
Q
Central nervous system
A
Brain and spinal cord
7
Q
Stimulus
A
8
Q
Receptor
A
Eyes (light)
Nose (chemical)
Ears (sound)
Pain, pressure (kinetic, chemical)
Temp (thermal)
9
Q
Sensory neurone
A
10
Q
Relay neurone
A
11
Q
Motor neurone
A
12
Q
Effectors
A
13
Q
Reflex arc
A
Nerve pathway that underlies our unconscious reflexes
Rapid, x involve brains, protects us from danger
14
Q
Cornea
A
Refracts light in the same amount
15
Q
Aqueous humour
A
