Coronary arteries

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The coronary arteries arise just distal (superior) to the aortic valve and supply the heart. They divide and encircle the heart to cover its surface with a lacy network resembling perhaps a slightly crooked crown.

Although there are variations (see main article: congenital coronary artery anomalies), the anatomy is relatively consistent. The typical configuration consists of two coronary arteries, left coronary and right coronary, arising above the left and right leaflets of the aortic valve respectively in the aortic sinuses.

The right coronary courses in the right atrioventricular groove as the, to the inferior surface of the heart, whereupon it turns anteriorly as the inferior interventricular artery (right dominant).

The left coronary has a short common stem before dividing into left circumflex, which courses over the left atrioventricular groove, and the left anterior descending artery, which passes towards the apex in the interventricular groove. In left dominant hearts the left circumflex supplies the inferior interventricular artery.

Branches

left coronary artery branches
- left anterior descending artery
- left circumflex artery
right coronary artery branches

EtymologyHistory and etymology

Coronary comes from the Latin, Coronarius - belonging to a crown or wreath.

~~-<li><a title="Inferior interventricular artery" href="/articles/inferior-interventricular-artery">inferior interventricular artery</a></li>~~
+<li><a href="/articles/inferior-interventricular-artery">inferior interventricular artery</a></li>
~~-</ul><h4>Etymology</h4><p>Coronary comes from the Latin, <em>Coronarius</em> - belonging to a crown or wreath.</p>~~
+</ul><h4>History and etymology</h4><p>Coronary comes from the Latin, <em>Coronarius</em> - belonging to a crown or wreath.</p>

Images Changes:

Image 2 CT (C+ arterial phase) ( update )

Caption was changed:

Case 1: ~~Left~~left-dominant circulation

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Coronary arteries

Updates to Article Attributes

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EtymologyHistory and etymology

Image 2 CT (C+ arterial phase) ( update )

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