Question

30 POINTS!!!!!!

Which statement describes the condition of the heart at the point indicated in the electrocardiogram?

A. The atria are contracting and pushing blood into the bottom ventricles of the heart.

B. The valves of the aorta and pulmonary artery close, producing the first heartbeat.

Answer 1

B. The valves of the aorta and pulmonary artery close, producing the first heartbeat. Is the correct answer. Hope this helped. Have a good day! :)

Answer 2

I believe the answer is B.