Nervous System Flashcards
What are impulses
Info from receptors that pass as electrical impulses along nerve cells to the brain
What are reflex actions
Responses that bypass the brain, eg pulling hand from something hot
What are the two types of neurone
Sensory and motor
What are sensory neurones
Neurones that carry impulses from the receptor to the brain
What are motor neurones
Neurones that carry impulses from the brain to the effector
What are sensory neurones surrounded by
Myelin
What direction does the sensory neurone do stuff
Through dendron out through axon
What is the reflex arc
The nerve pathway of a reflex
What are the gaps between neurones
Synapse
What is the reflex arc, every part + eg
Stimulus
-candle
Receptor
-temp receptor in finger
Coordinator
-relay neurone in spinal chord
Effector
-muscle in arm
Response
-arm moving away