Ion Channels Flashcards
1
Q
Na+(m)
A
Activated in phase 0 and 1, when membrane potential crosses threshold
2
Q
Ka+(a)
A
Transient outward current. Activated in phase 1 when the cell depolarizes
3
Q
Ca2+
A
Activated in phase 2 and 3 when the cell depolarizes
4
Q
K+(b)
A
Activated in phase 2 and 3 when the cell depolarizes. Closes and remains closed until phase 3
5
Q
K+(c)
A
Remains open to help maintain RMP in phase 4
6
Q
Na+(f)
A
Activated in phase 4 when the SA or AP node repolarizes
7
Q
Potassium flows…
A
Out into the ECF
8
Q
Sodium flows…
A
Into the ICF
9
Q
Calcium flows..
A
Into the ICF
