Left coronary artery
| Left coronary artery | |
|---|---|
| File:Gray495.png
Heart viewed from above, atria removed, base of ventricles exposed. Left coronary artery visible at left.
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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.
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| Details | |
| Latin | arteria coronaria sinistra |
| Source | ascending aorta |
| Branches | anterior interventricular circumflex (ramus intermedius) |
| Identifiers | |
| Dorlands /Elsevier |
a_61/12154070 |
| TA | Lua error in Module:Wikidata at line 744: attempt to index field 'wikibase' (a nil value). |
| TH | {{#property:P1694}} |
| TE | {{#property:P1693}} |
| FMA | {{#property:P1402}} |
| Anatomical terminology [[[d:Lua error in Module:Wikidata at line 863: attempt to index field 'wikibase' (a nil value).|edit on Wikidata]]]
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The left coronary artery (abbreviated LCA) is an artery that arises from the aorta above the left cusp of the aortic valve and feeds blood to the left side of the heart. It is also known as the left main coronary artery (abbreviated LMCA) and the left main stem coronary artery (abbreviated LMS).
Branching
It typically runs for 10 to 25 mm and then bifurcates into the anterior interventricular artery (also called the left anterior descending (LAD) and the "Widow maker") and the left circumflex artery (LCx). 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.[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.
A "first septal branch" is sometimes described.[2]
Additional images
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Coronary arteries 1.jpg
Left coronary artery
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Cardiac vessels.
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The arch of the aorta, and its branches.
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Diagram of the arch.
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Human heart with coronary arteries.
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Heart left lateral coronaries diagram.svg
Heart left lateral coronaries diagram.
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Diagram of a myocardial infarction.
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A coronary angiogram that shows the LMCA, LAD and LCX.
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Aortic stenosis rotated.jpg
Autopsy specimen showing the coronary ostia and proximal segments of the coronary arteries. Compare with Gray's Anatomy drawing above.
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Slide2vvvv.JPG
Left coronary artery
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Slide18bek.JPG
Left coronary artery.Plastination technique
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Slide19gen.JPG
Left coronary artery.Plastination technique
See also
References
External links
- Anatomy figure: 20:03-01 at Human Anatomy Online, SUNY Downstate Medical Center - "Anterior view of the heart."
- 00463 at CHORUS
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