Nerve Signal Steps Flashcards
1
Q
- First stage is _
A
Resting potential
2
Q
- When at rest, neuron has more _ outside of membrane than inside
A
Positive ions
3
Q
Difference in _ or _ across the membrane is called the resting potential
A
Polarization
Electrical potential
4
Q
- Second stage is called _
A
Depolarization
5
Q
- As a result of _, positive ions enter cell through the membrane
A
Chemical changes from cell body
6
Q
- Influx of positive ions reverses the polarization of the axon, makkng _
A
Outside negative
7
Q
- Third stage is called _
A
Repolarization
8
Q
Depolarization of part of the axon causes the adjacent section to undergo _
A
Same process
9
Q
- In repolarization, cell _ which repolarizes membrane back to resting potential
A
Pumps out positive ions
