neurons Flashcards
1
Q
sensory neuron
A
sends info abt stimuli to central nervous system
2
Q
signals
A
travel from one neuron to another
3
Q
motor neuron
A
causes muscles to contract
4
Q
what activates the neuron
A
sodium ions (Na+)
5
Q
sodium channels
A
open after neurotransmitter is bound and allow Na to go into cell
6
Q
membrane potential
A
the difference between charges inside and outside of cell
7
Q
firing threshold
A
level of membrane potential that causes depolarization
8
Q
nods of ranvier
A
space between myelin bands
9
Q
saltatory conduction
A
when action potential jumped from node to node
10
Q
exocytosis
A
the arrival of action potential to dendrites
11
Q
reuptake
A
pulls neurotransmitters back to neuron after released
