Pacemaker action potential phases

Pacemaker action potential phase 4

Pacemaker action potential phase 0

Pacemaker action potential phase 3

Cardiac myocyte action potential phases

Cardiac myocyte action potential
Phase 4

Cardiac myocyte action potential
Phase 0

Cardiac myocyte action potential
Phase 1

Cardiac myocyte action potential
Phase 2

Cardiac myocyte action potential
Phase 3