The driving force for blood circulation is ____.
A) contraction of the atria
B) contraction of the ventricles
C) closing of the AV valves
D) opening of the AV valves
E) closing of the aortic valve

Question

The driving force for blood circulation is ____.​
A) ​contraction of the atria
B) ​contraction of the ventricles
C) ​closing of the AV valves
D) ​opening of the AV valves
E) ​closing of the aortic valve

Quizplus · Accepted Answer

The primary driving force for blood circulation is the contraction of the ventricles. When the ventricles contract, they push blood out of the heart into the circulation - the left ventricle pumps blood into the systemic circulation through the aorta, and the right ventricle pumps blood into the pulmonary circulation through the pulmonary artery.

The Driving Force for Blood Circulation Is ____.​

The Driving Force for Blood Circulation Is ____.