The Cardiac cycle

Question 1

Phase 1

Answer 1

Atrial diastole - relaxation with the filling up of the atria
Ventricle systole - contracting

Question 2

Phase 2

Answer 2

Atrial systole - squeezing in and down of the atria
Ventricular diastole - ventricles are relaxing

Question 3

Phase 3

Answer 3

Atrial diastole - relaxing
Ventricular systole - contracting
- ventricles empty ad atria begin to fill up again and go back to phase 1.

Question 4

Atrial systole

Answer 4

atria contract which forces blood into the ventricles.

Question 5

Ventricular systole

Answer 5

ventricles contract which pumps blood out the heart into the aorta and pulmonary artery to body and lungs

Question 6

Diastole

Answer 6

• relaxation phase.