Action Potential Flashcards
1
Q
Are the Na+ channels open at stage 1?
A
Open
2
Q
Are the K+ channels open at stage 1?
A
Closed
3
Q
Are the Na+ channels open at stage 2?
A
Open
4
Q
Are the K+ channels open at stage 2?
A
Closed
5
Q
Are the Na+ channels open at stage 3?
A
Closed
6
Q
Are the K+ channels open at stage 3?
A
Open
7
Q
Are the Na+ channels open at stage 4?
A
Closed
8
Q
Are the K+ channels open at stage 4?
A
Closed
9
Q
Are the Na+ channels open at stage 5?
A
Closed
10
Q
Are the K+ channels open at stage 5?
A
Closed
11
Q
What happens at stage 1?
A
Depolarisation to threshold potential
12
Q
What happens at stage 2?
A
Depolarisation to +40mV
13
Q
What happens at stage 3?
A
Repolarisation
14
Q
What happens at stage 4?
A
Hyperpolarisation
15
Q
What happens at stage 5?
A
Resting potential
