CVS Practice Test 2025 – Complete Exam Preparation

The statement is false because the right coronary artery is not a branch of the left main coronary artery; rather, it originates independently from the aorta. In a normal adult anatomy, the heart's arterial supply is provided by two main coronary arteries: the left main coronary artery and the right coronary artery.

The left main coronary artery bifurcates into the left anterior descending artery and the circumflex artery, while the right coronary artery provides blood supply to the right atrium, right ventricle, and often the inferior portion of the left ventricle. This anatomical separation is crucial for understanding the coronary blood flow, as well as its implications in cardiac health and disease.

Options suggesting that the right coronary artery's relationship with the left main coronary artery varies by population or during fetal development do not reflect the established anatomical understanding in adult humans and add confusion to the fundamental structure of coronary circulation.