The left coronary artery (lat. a. coronaria cordis sinistra) is an artery that supplies the heart of humans and other mammals.
The left coronary artery begins from the left common carotid artery, passes through the interatrial septum of the heart, where it divides into the anterior descending and posterior descending branches, which supply blood to the left atrium and left appendage of the heart.
The left coronary artery is one of the main arteries supplying blood to the heart. It plays an important role in maintaining the normal functioning of the heart muscle and providing it with oxygen and nutrients. Impaired blood supply to the heart can lead to serious illnesses such as myocardial infarction and heart failure.