A heart valve opens and closes due to A) being pulled by the heart muscle B) pressure differences on the valve's two sides C) Na⁺ and K⁺ fluxes during ventricular depolarization D) turbulent flow in the atria and ventricles E) none of these

Question

Quizplus · Accepted Answer

Heart valves open and close due to pressure differences on the valve's two sides. When the pressure is higher on one side, the valve opens and allows blood to flow through, and when the pressure is higher on the other side, the valve closes to prevent backflow.

A Heart Valve Opens and Closes Due to