Coronary arteries are blood vessels that supply oxygen-rich blood to the heart muscle. They branch off from the aorta, the main artery in the body, and wrap around the heart. These arteries are crucial for keeping the heart healthy and functioning properly, as they provide the necessary nutrients and oxygen that the heart needs to pump blood throughout the body. When coronary arteries become narrowed or blocked, it can lead to serious health issues, such as angina or a heart attack. Factors like high cholesterol, smoking, and high blood pressure can contribute to these problems. Maintaining a healthy lifestyle is essential for keeping the coronary arteries clear and the heart strong.