Multiple choice

Which of the following is the shortest step in the cardiac cycle?

  1. Isovolumic relaxation

  2. Ventricular systole

  3. Atrial systole

  4. Ventricular filling

  5. Joint diastole

Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

In this step, both the atria get filled with blood. The atrial systole takes about 0.1 second.