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Left coronary artery

Artery supplying blood to the left side of the heart muscle

Summary

Artery supplying blood to the left side of the heart muscle

Field	Value
Name	Left coronary artery
Latin	arteria coronaria sinistra
Image	Gray495.png
Caption	Heart viewed from above, atria removed, base of ventricles exposed. Left coronary artery visible at left.
Image2	Coronary arteries.svg
Caption2	Heart viewed from the front. Coronary arteries (labeled in red text) and other major landmarks (in blue text). Left coronary artery is at upper right in the image.
BranchFrom	Ascending aorta
BranchTo	{{Plain list

Anterior interventricular
circumflex (ramus intermedius)

The left coronary artery (LCA, also known as the left main coronary artery, or left main stem coronary artery) is a coronary artery that arises from the aorta above the left cusp of the aortic valve, and supplies blood to the left side of the heart muscle. The left coronary artery typically runs for 10–25 mm, then bifurcates into the left anterior descending artery, and the left circumflex artery.

The part that is between the aorta and the bifurcation only is known as the left main artery (LM), while the term "LCA" might refer to just the left main, or to the left main and all its eventual branches.

Structure

Variation

Sometimes, an additional artery arises at the bifurcation of the left main artery, forming a trifurcation; this extra artery is called the ramus or intermediate artery.

A "first septal branch" is sometimes described.

Additional images

References

Laird, Robert J.. (2004-01-01). "Chapter 1 - Cardiovascular Structure and Function". Mosby.
Fuster, V. (2001). "Hurst's The Heart". McGraw-Hill.
(June 1988). "Unusual origin and course of the first septal branch of the left coronary artery: angiographic recognition". Cardiovasc Intervent Radiol.

Wikipedia Source

This article was imported from Wikipedia and is available under the Creative Commons Attribution-ShareAlike 4.0 License. Content has been adapted to SurfDoc format. Original contributors can be found on the article history page.

arteries-of-the-thorax

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