Phases Of Cardiac Cycle Flashcards
Increase in ateial pressure caused by atrial systole
A wave
2 causes of 4th heart sound
Ventricular hypertropy
Filling of ventricle by atrial systole
A wave
4th heart sound
Atrial systole
S1 aka AV valve closure
Isovolumetric ventricular contraction
Wave caused by bulging of tricuspid valve into right atrium
C wave
C wave
Rapid ventricular ejection
Most of the stroke volume is ejected in this phase
Rapid ventricular ejection
Represents repolarization of ventricles
Marks end of ventricular contraction and rapid ventricular ejection
T wave
Represents blood flow into right atrium in its rising phase then to right ventricle in its falling phase
V wave
V wave
Reduced ventricular ejection
Second heart sound what phase
Iso relaxation
“Blip” in aortic pressure that occurs after closure of aortic valve
Dicrotic notch/incisura
Dicrotic notch/incisura what phase
Iso relaxation
Mitral valve opens on what phase
Rapid ventricular filling
S3 what phase
Rapid ventricular filling
Caused by rapid flow of blood from atria to ventricles
Normal in kids
S3
Longest phase of cardiac cycle
Rapid ventricular filling/diastasis