Coronary arteries are vessels that provide oxygen-rich blood and other nutrients to
the heart muscle. The two main coronary blood vessels, which branch from the body's
main artery (aorta), are the right coronary artery (RCA) and the left coronary artery
The coronary arteries attach to and wrap around the heart's surface. The left side
of the heart is larger and more muscular because it pumps blood to the rest of the
body. The left coronary artery branches off into smaller arteries:
Left anterior descending artery.
Left circumflex artery, which encircles the heart muscle.
The right side of the heart pumps blood to the lungs and related structures. The right
marginal branch usually extends from the right coronary artery and supplies blood
to the lower side of the heart.
Current as of: December 15, 2019
Author: Healthwise Staff
Medical Review:Adam Husney MD - Family Medicine & Rakesh K. Pai MD, FACC - Cardiology, Electrophysiology & Martin J. Gabica MD - Family Medicine & Robert A. Kloner MD, PhD - Cardiology
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