nervous system Flashcards
(11 cards)
1
Q
what does the nervous system do
A
detects and reacts to stimuli (changes to environment)
2
Q
whats the central nervous system
A
brain and spinal cord
3
Q
what do sensory neurons do
A
carry information as electrical impulses from a receptor to CNS
4
Q
whats a relay neuron
A
carry impulses from sensory neurons to motor neurons
5
Q
what are motor neurons
A
carry electrical impulses from CNS to an effector
6
Q
whats an effector
A
muscles and glads which respond to nervous impulses
7
Q
whats a receptor
A
cells that detect stimuli
8
Q
what do muscles do
A
contract in response to a nervous impulse
9
Q
what do glands do
A
secrete hormones
10
Q
whats the order
A
stimulus
receptor
sensory neurone
CNS
motor neurones
effector
response
11
Q
whats a synapse
A
connects 2 neurones
