5.2.1 Structure and function Flashcards
1
Q
What does the nervous system enable humans to do?
A
2
Q
What is the CNS made up of? What does it stand for?
A
3
Q
Nerve vs neurone
A
4
Q
How does the nervous system work?
A
5
Q
What are reflex actions?
A
6
Q
What is the reflex arc?
A
7
Q
Why are reflex actions important?
A
8
Q
Explain how the nervous system coordinates reflex actions (6 marks)
A
- receptor detects stimuli
- (electrical) impulses pass along neurones
- sensory to relay to motor neurones
- synapse between neurones where chemical crosses gap
- (synapses) in spinal cord / CNS
- muscle contraction (or gland secretes hormones)
9
Q
Function of the sensory neurone
A
10
Q
Function of the motor neurone
A
11
Q
Function of the relay neurone
A
12
Q
Synapses
A
