The cardiac cycle is the sequence of events that occurs when the heart beats. There are 2 phases of the cardiac cycle.
- Diastolic phase
- Systole phase
In diastolic phase, the heart ventricles are relaxed and the heart fills with blood.
In the systolic phase, the ventricles contract and pump blood to the arteries.
One cardiac cycle is completed when the heart fills with blood and the blood is pumped out of the heart.
Flow of blood in the heart (Cardiac cycle)
Difficult to remember the sequence? Log-in to Edmodo to complete and turn in 'Assignment 3: The Cardiac Cycle' while you listen to this song...
Other Resources:
Video and quiz - Watch a video then answer the quiz on cardiac cycle.
Flashcard - Flashcard quiz on cardiac cycle.
