When these valves open, blood goes from the atria to the ventricles.
A) AV node
B) SA node
C) SL valves
D) AV valves

Question

Quizplus · Accepted Answer

AV valves (also known as atrioventricular valves) are the valves that open to allow blood to flow from the atria to the ventricles during heart contractions. The other options listed are not directly involved in this process. The SA node is responsible for initiating the electrical signals that regulate heart rhythm, the AV node helps to transmit these signals, and the SL valves (also known as semilunar valves) are responsible for opening to let blood flow out of the heart and into the arteries.

When These Valves Open, Blood Goes from the Atria to the Ventricles