CVS Practice Test 2026 – Complete Exam Preparation

The aortic valve has three distinct cusps that play a critical role in the functioning of the heart by preventing the backflow of blood from the aorta into the left ventricle. The correct choice, which identifies one of these cusps, is indeed the right coronary cusp.

This cusp is significant because it is associated with the right coronary artery, which arises from the aorta. During the cardiac cycle, when the heart contracts, the aortic valve opens to allow blood to flow from the left ventricle into the aorta. Once the heart relaxes, the cusps close to prevent the blood from returning. The right coronary cusp is positioned between the left ventricle and the aorta and plays a vital role in maintaining unidirectional blood flow.

The terms presented in the other choices refer to structures or locations that do not designate actual cusps of the aortic valve. The right atrial cusp is not a recognized anatomical feature, and both left ventricular cusp and left ventricle cusp are incorrect terminologies that do not correspond to the actual cusps of the aortic valve. Understanding this structure is important for grasping how the heart functions and how blood flows through the cardiovascular system.