Koroner arter are blood vessels that supply oxygen-rich blood to the heart muscle. They branch off from the aorta and encircle the heart, ensuring it receives the necessary nutrients to function effectively. There are two main coronary arteries: the left and right coronary arteries, each further dividing into smaller branches. When these arteries become narrowed or blocked, it can lead to conditions such as angina or myocardial infarction (heart attack). Maintaining healthy coronary arteries is crucial for overall heart health, often achieved through a balanced diet, regular exercise, and avoiding risk factors like smoking and high cholesterol.