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 above
E) none of the above

Question

Quizplus · Accepted Answer

During the isovolumetric contraction phase of ventricular systole, the atrioventricular valves and semilunar valves are closed. The ventricles are contracting, but no blood is being ejected into the great vessels yet. The atria are also relaxing during this phase.

During the Isovolumetric Contraction Phase of Ventricular Systole, the