Out of the coronary arterial aorta - the main blood vessel from the heart - you just leave the heart pump room, ventrikel left, so they are the first vessel to receive the blood that is rich in oxygen. Both coronary arterial namely the left and the right is the relative small vessel, they have a diameter of only 3 to 4 millimeter. They are the heart surface, meet each other behind, and almost form a circle. When the model of the vessel is the first time seen by the first time, they think it seems like crown (crown), so they use the latin name of the current we use, coronary arterial (coronary arteries).
Because of this very important arterial, doctors are used to (the right) with this and its arterial branches and variations that can occur from each person. Left coronary arterial has 2 main branches called the anterior descending and circumflex, each also has its branches. They supply almost all of which left ventrikel more muscular of the two ventrikel because he had to pump blood overlooks body. Right coronary arterial generally smaller and supply the heart and the bottom right ventrikel, room pumping blood to the lungs.
Coronary arterial structure have the same arterial-arterial another, but different in one thing - only blood can flow through this tube into the heart muscle between detakan heart, when the heart breaks (relax). When the heart muscle to contraction, pressure can be so hard to allow the blood to enter into the heart muscle. This means that the heart requires an efficient network of blood vessel smooth muscle of the heart to get blood where it is needed.
On coronary heart disease (CHD), coronary arterial become narrow, and lack of heart muscle and blood oxygen as needed. In the rest may not be a problem, but if the heart work harder to try from the normal - ie if you ascend the stairs - coronary arterial may not be able to survive with the oxygen demand, and you get a pain in the chest. If you rest, pain will usually disappear. If a coronary arterial is closed (block) by the blood, then the heart muscle that is supplied to be dead.
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