1
Q
What are the uses of the nervous system?
A
Enables humans to react to their surroundings and coordinate their behaviour.
2
Q
Reflex Arc
A
- Rapid, automatic response.
1) Stimuli
2) Receptor
3) Sensory neurone
(synapse - electrical impulse to chemical which diffuses across the synapse)
4) Relay neurone
5) Motor neurone
6) Effector - muscle (contraction)/gland (secreting a chemical)
