The cardiac cycle.
cardiac cycle
Cardiac Cycle
Cardiac Cycle
One Heartbeat was created in 1986.
Cardiac Cycle
No...heartbeat is one word.
Arrhythmia
Diastole
It is called Systole.
arrythmyia
Cardiac cycle
'In the House in a Heartbeat' written by John Murphy.
They are called Lubb Dubb