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Yousun Koh

Coronary arteries and cardiac veins (Latin)

Coronary arteries and cardiac veins (Latin)

The coronary arterial system starts with two main arteries which originate from the aortic sinuses of radix aortae. The a. coronaria dextra wraps around the right side of the heart running in the sulcus coronarius/atrioventricularis. It gives rise to three groups of branches (rr. anteriores, marginales and inferiores/posteriores) that vascularize the majority of structures located in the right aspect of the heart. The a. coronaria sinistra courses towards the sulcus interventricularis anterior where it bifurcates into its two terminal branches; the a. interventricularis anterior and the a. circumflexa cordis. The largest vein of the heart is the sinus coronarius. It runs in the sulcus coronarius on the inferior aspect of the heart and drains blood from the majority of the heart into the atrium dextrum. The sinus coronarius has many tributaries including the v. magna cordis, v. media cordis, v. parva cordis, v. inferior ventriculi sinistri and the v. obliqua atrii sinistri. The largest vein on the anterior aspect of the heart is the v. magna cordis. This vein receives blood from many venules of the ventriculus sinister and atrium sinistrum, v. marginalis sinistra and v. interventricularis anterior.
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