Circumflex artery

The Circumflex artery (pronunciation: sɜːrkəmˈflɛks ˈɑːrtəri) is a significant branch of the left coronary artery that curves around the heart, supplying it with oxygenated blood.

Etymology

The term "Circumflex" is derived from the Latin words "circum" meaning around and "flexus" meaning bent. The artery is so named because of its curved course around the heart.

Anatomy

The Circumflex artery originates from the left coronary artery, which itself arises from the aorta. It follows the left part of the atrioventricular groove, also known as the coronary sulcus, curving around the heart to the posterior side. It gives off several branches, including the left marginal artery and the posterior left ventricular branches, which supply blood to the walls of the heart.

Clinical significance

Blockage or narrowing of the Circumflex artery, often due to atherosclerosis, can lead to a type of myocardial infarction (heart attack) known as a lateral wall MI. This is a serious condition that requires immediate medical attention.

Related terms

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Circumflex artery

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