Question

19 during ventricular contraction, what is the status of the atrioventricular valves? multiple choice the tricuspid valve is open and the mitral valve is closed. the mitral and tricuspid valves both are open. the mitral and tricuspid valves both are closed. the mitral valve is opened and the tricuspid valve is closed.

Explanation:

During ventricular contraction, pressure in the ventricles rises. To prevent back - flow of blood into the atria, the atrioventricular valves (mitral and tricuspid) close.

Answer:

The mitral and tricuspid valves both are closed.