Cardiac Cycle

how long does a cardiac cycle take?

0.8 secs

what does the cardiac cycle represent?

one full heartbeat

what are the three phases?

diastole phase , atrial systole, ventricular systole

how long does the diastole phase last?

0.4 secs

how long does the atrial systole last?

0.1 secs

how long does the ventricular systole last?

0.3 secs

diastole phase

heart relaxes and fills with blood and pressure increases in atri aso av valves open

atrial systole

atria contracts forcing blood into the ventricles

ventricular systole

ventricles contracts increasing pressing closing av valves to stop backflow