Topic 2 Nervous System Flashcards
1
Q
What is a stimuli
A
A stimuli is a change in the environment (light heat pressure)
2
Q
What are receptors
A
Receptors sense the stimulus such as change in environment.
3
Q
What is the nervous system
A
Nervous system allows you to detect and respond to stimuli which therefore allows you to control your body
4
Q
What are the travelling impulses in neurones called and what do they do
A
Nurotransmissions - a chemical messager which transmits signals across synapses to get messages to parts of the body
5
Q
What are dendrites
A
Dendrites receive the impulses from receptors
6
Q
What are reactions
A
Reactions are when your body needs to react so fast but it cannot send signals to the brain and so sends signals to the spinal cord instead
