human nervous system Flashcards
1
Q
what does the nervous system enable humans to do?
A
react to their surroundings and coordinate their behaviour
2
Q
how is information passed along neurones?
A
as electrical impulses
3
Q
what is the central nervous system (CNS) made up of?
A
brain
spinal cord
4
Q
what is the order of the reflex arc?
A
stimulus —>
receptor —>
coordinator —>
effector —>
response
5
Q
give 2 adjectives which describe reflexes?
A
rapid
automatic
6
Q
reflexes do not use the brain.
what happens instead?
A
the impulse travels across the relay neurons in the spinal cord
7
Q
what is a synapse?
A
a gap between 2 neurones
8
Q
chemicals ___ across the synapse to start a new ___ ___ in the next ___
A
diffuse
electrical impulse
neurone
