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Left coronary artery
Artery supplying blood to the left side of the heart muscle From Wikipedia, the free encyclopedia
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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.[citation needed] The left coronary artery typically runs for 10–25 mm, then bifurcates into the left anterior descending artery, and the left circumflex artery.[1]
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.[citation needed]
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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.[2]
A "first septal branch" is sometimes described.[3]
Additional images
 | This gallery of anatomic features needs cleanup to abide by the medical manual of style. |
Left coronary artery
Cardiac vessels
The aortic arch and its branches
Diagram of the arch
Human heart with coronary arteries
Heart left lateral coronaries diagram
Diagram of a myocardial infarction
A coronary angiogram that shows the LMCA, LAD, and LCX
Autopsy specimen showing the coronary ostia and proximal segments of the coronary arteries. Compare with Gray's Anatomy drawing above.
Left coronary artery
Left coronary artery. Plastination technique
Left coronary artery. Plastination technique
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See also
- Coronary circulation
- Pete Maravich – American basketball player whose congenital lack of a left coronary artery lead to his death at age 40
References
External links
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