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.
The two phases of the cardiac cycle are systole and diastole.
systole and diastole
systole 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.
Full Moon and New Moon phases.
the four phases of mitosis are prophase, metaphase, anaphase, and telophase
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 main phases of meiosis are prophase and telophase
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?
It reflects light from the Sun and it has different phases.
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.
The decision to run for office and Winning delegates.
The two main phases of the cell cycle are; mitotic phase, in which the cell divides into two, and inter phase, where the cell grows.