There is the contraction of the atria and the contraction of the ventricles. When the atria contract, the AV valves are open, allowing the blood to fall into the ventricles. The AV valves then close, and the ventricles contract, pumping the blood out into the arteries.
Wiki User
∙ 13y agoWiki User
∙ 13y agoThe two phases of the cardiac cycle are systole and diastole.
Fanus Tesfagabir
The two main phases of a heartbeat are systole and diastole. Systole is the contraction phase when the heart pumps blood out, while diastole is the relaxation phase when the heart fills with blood.
Wiki User
∙ 12y agosystole and diastole
Wiki User
∙ 14y agosystole diastole
The two phases of the Cell Cycle are:InterphaseMitosis
The two main phases of cell cycles are the interphase and the mitotic phase.
Respiration occurs in two phases: anaerobic, which does not require oxygen, and aerobic which does require oxygen.
The two main phases of cell division are mitosis and cytokinesis. Mitosis involves the division of the cell's nucleus into two identical daughter nuclei, while cytokinesis is the physical splitting of the cell into two separate daughter cells.
Two phases are at equilibrium when the rate of their interconversion is equal in both directions. This means that the amount of substance transitioning from one phase to another is the same in both directions, resulting in a stable balance between the phases.
The two phases of the heartbeat are systole (contraction phase) and diastole (relaxation phase).
The human heartbeat has two phases. The systolic phase corresponds with contraction, and the diastolic phase with relaxation.
Diastole (relaxation) Systole (contraction)
The two main phases of a cell cycle are interphase and mitosis.
The two phases of the Cell Cycle are:InterphaseMitosis
The two main phases of cell cycles are the interphase and the mitotic phase.
the pumping and the not pumping? diastollic and systollic?
contraction and expansion.
The two main phases of a persons sleep, is REM sleep, Rapid Eye Movement, which is when you dream, and just a normal deep sleep. This happens every 90 minutes.
interphase
interphase
The period of time between the beginning of one heartbeat and the start of the next is known as the cardiac cycle. It consists of two phases: systole (contraction of the heart muscles) and diastole (relaxation of the heart muscles).