Question

During the systolic phase of cardiac cycle, blood _____________.

• A. leaves the heart
• B. rests in the heart
• C. returns to the heart
• D. enters the heart

Answer 1

The correct option is A

leaves the heart

Systole is the contraction of the left and right ventricles, resulting in blood flow to the body and lungs, respectively. Diastole includes the contraction of the atria and the filling of the ventricles. Thus, in the systolic phase of cardiac cycle, blood leaves the heart.