Nurturing Life Sciences
#Id: 10309
#Id: 3987
#Unit 7. System Physiology – Animal
Phase 0 (depolarization), fast sodium channels open.
#Id: 3989
Phase 1 (initial repolarization), fast sodium channels close
#Id: 3991
Phase 2 (plateau), calcium channels open and fast potassium channels close.
#Id: 3994
Phase 3 (rapid repolarization), calcium channels close and slow potassium channels open
#Id: 3996
Phase 4 (resting membrane potential) averages about −90 millivolts.
#Id: 4001