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Coronary artery - Definition


The coronary arteries surround the entire surface of the heart and their role is to vascularize the cardiac muscle. There are two of them and they originate from the aorta. They are then divided into different branches to irrigate the entire heart. The drop in the size of the coronary artery indicates heart failure and leads to an angina, or angora and is recognized by thoracic pain. A myocardial infarction is due to the obstruction of a branch of the coronary arteries leading to pain in the myocardial muscle. In this case, an examination of the coronary arteries called a coronarography is done after injecting a product which enables the precise localization of the artery in question and an intervention is made to re-establish adequate circulation.