During ventricular contraction, what are the position of the valves?
A) The atrioventricular valves are open.
B) The atrioventricular valves are closed.
C) The aortic valve is closed.
D) The pulmonary valve is closed.

Question

Quizplus · Accepted Answer

During ventricular contraction, the atrioventricular valves (tricuspid and mitral valves) are closed to prevent backflow of blood into the atria. The aortic and pulmonary valves are open to allow blood to be pumped into the aorta and pulmonary artery, respectively.

During Ventricular Contraction, What Are the Position of the Valves