During the isovolumetric contraction phase of ventricular systole, the

A) atria are contracting and the ventricles are relaxing.
B) atrioventricular valves and semilunar valves are closed.
C) blood is ejected into the great vessels.
D) All of the answers are correct.
E) None of the answers is correct.


Answer: B

Anatomy & Physiology

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