CVS Practice Test 2025 - Free CVS Practice Questions and Study Guide

The correct choice identifies the tricuspid and mitral valves as atrioventricular (AV) valves. These valves are crucial components of the heart's anatomy, situated between the atria and ventricles. Their primary function is to regulate blood flow from the atria into the ventricles during the heart's filling phase while preventing backflow when the ventricles contract.

The tricuspid valve is located on the right side of the heart, allowing blood to flow from the right atrium to the right ventricle. Similarly, the mitral valve is situated on the left side, facilitating blood flow from the left atrium to the left ventricle. The term "atrioventricular" specifically describes their location and role in separating the atria from the ventricles.

In contrast, semilunar valves are positioned between the ventricles and the major arteries (the pulmonary artery and the aorta). Chordae tendineae are not valves themselves but rather fibrous cords that connect the AV valves to the papillary muscles, helping to maintain valve closure. The term "ventricular valves" is less commonly used and might imply valves associated with the ventricles, but it does not accurately reflect the specific function and classification of the