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

The primary function of the coronary arteries is to supply blood to the heart muscle, which is essential for its proper functioning. These arteries branch off from the aorta, the main artery of the body, immediately after blood leaves the heart. This strategic positioning allows them to deliver oxygen-rich blood directly to the myocardium, the muscular layer of the heart wall.

The heart requires a constant supply of oxygen and nutrients to maintain its vigorous pumping action, and the health of the coronary arteries is crucial for this. If these arteries become blocked or narrowed, it can lead to conditions such as angina or even a heart attack, as the heart muscle would not receive adequate blood flow.

Other options, such as supplying blood to the lungs, brain, or stomach, are served by different arteries: the pulmonary arteries manage blood flow to the lungs for oxygenation, the carotid arteries supply blood to the brain, and the celiac trunk supplies blood to the stomach and other abdominal organs. Each of these areas relies on specific arteries tailored to their blood supply needs.