The coronary arteries are blood vessels transporting oxygen-rich blood from the exterior to the heart. This organ can not use the blood flowing in its cavities directly, because the blood flow runs at great speed and the internal pressure is too much. It can even destroy any network cardiac capillaries.
In addition, the blood from the right side of the heart is very poor in oxygen, so it would be incapable of supplying this fluid to the muscle fibers.
The heart’s network of blood vessels begins in the aortic artery, which splits into two (right and left), surrounding the organ.
– The left coronary artery also splits into other arteries: the anterior descending artery, which carries blood across the front of the heart towards both ventricles; the circumflex artery, which supplies the left ventricle and auricle, and a few smaller arteries known as the obtuse marginal and diagonal arteries.
– The right coronary artery has two branches: the acute marginal artery, which sends blood to the front parts of the right auricle and ventricle, and the descending posterior artery, which supplies the back part of both ventricles.