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Normal Coronary Arteries

Image source: The Cleveland Clinic

The heart pumps blood into aorta, the great vessel. Branches from the aorta supply the body with oxygen rich blood.

The heart is supplied with blood by the very first blood vessels that branch from the aorta.

These are the coronary arteries.

There are two arteries that supply the heart with blood.

The left coronary artery has an initial short segment (approximately 20 – 30 mm), the left main coronary artery, which quickly divides into two large branches.

The left anterior descending artery (LAD) supplies the front part of the heart.

 The left circumflex artery (Cx) supplies the back part of the heart.

The right coronary artery (RCA) supplies the bottom of the heart.

An angiogram is a x-ray picture of the heart. A hollow tube called a catheter is advanced to the artery via the leg or the arm. Dye is then injected into the artery.


Above is an angiogram of a normal left coronary artery.

Below is an angiogram of a normal right coronary artery.