16. Cardiac Cycle

Question 1

Describe the pressure changes
that occur during the cardiac
cycle.

Describe the five phases of the
cardiac cycle.

Answer 1

Phase 1: atrial contraction
Phase 2: ventricular isovolumetric contraction
Phase 3: ventricular ejection
Phase 4: ventricular isovolumetric relaxation
Phase 5: passive ventricular filling.

Question 2

Fig. 16.1 The cardiac cycle

Answer 2

Fig. 16.1 The cardiac cycle