ventricular muscle action potential Flashcards
1
Q
what occurs during phase 0?
A
The sodium channels open, causing influx of sodium and depolarisation
2
Q
what occurs during phase 1?
A
the sodium channels close, potassium channels open causing potassium efflux
3
Q
What occurs during phase 2?
A
calcium L-type channels open allowing influx of calcium, potassium continues to leave the cell causing the mV to plateau
4
Q
what occurs during phase 3?
A
the L-type calcium channels close, efflux of potassium continues causing repolarisation
5
Q
what occurs at phase 4?
A
resting membrane potential is reached due to efflux of potassium causing repolarisation
