How many arteries in your heart

The left anterior descending artery branches off the left coronary artery and supplies blood to the front of the left side of the heart. The circumflex artery branches off the left coronary artery and encircles the heart muscle. This artery supplies blood to the outer side and back of the heart. Right coronary artery RCA. The right coronary artery supplies blood to the right ventricle, the right atrium, and the SA sinoatrial and AV atrioventricular nodes, which regulate the heart rhythm.

The right coronary artery divides into smaller branches, including the right posterior descending artery and the acute marginal artery. Together with the left anterior descending artery, the right coronary artery helps supply blood to the middle or septum of the heart. Smaller branches of the coronary arteries include: obtuse marginal OM , septal perforator SP , and diagonals.

Major arteries of the body. Head and neck arteries. Share on Pinterest Arteries in the head and neck. Torso arteries. Share on Pinterest Arteries of the lungs, heart, pelvis, and the aorta in the abdomen.

Abdomen arteries. Arteries of the arms. Arteries of the legs. Quick guide to arteries vs. The bottom line. Medically reviewed by J. Automated vs. Read this next. Blood Pressure Readings Explained. Medically reviewed by Judith Marcin, M. Medically reviewed by Debra Sullivan, Ph. Medically reviewed by Alana Biggers, M. Medically reviewed by Deborah Weatherspoon, Ph.

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