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The coronary arteries originate as the right and left main coronary arteries, which exit the ascending aorta just above the aortic valve (coronary ostia). There are three cusps of the aortic valve: the non-coronary cusp, which contains no ostia, the right coronary cusp, which contains the ostia of the right coronary artery, and the left coronary cusp, which contains the ostia of the left (main) coronary artery. The ostia of the left and right coronary arteries are located just above the aortic valve, as are the left and right sinuses of Valsalva.

Oxygenated blood is pumped into the aorta from the left ventricle; it then flows into the coronary artery ostia. Blood flow into the coronary arteries is greatest during ventricular diastole.

Las arterias coronarias se originan a partir de la aorta ascendente justo por encima de la válvula aórtica (ostium coronario). Hay tres cúspides de la válvula aórtica: la cúspide no coronaria, que no contiene ostia, la cúspide coronaria derecha, que contiene el ostium de la arteria coronaria derecha, y la cúspide coronaria izquierda, que contiene el ostium de la arteria coronaria izquierda. Los orificios de las arterias coronarias izquierda y derecha se encuentran justo encima de la válvula aórtica, al igual que los senos de valsalva izquierdo y derecho.

La sangre oxigenada es eyectada a través de la aorta desde el ventrículo izquierdo; luego fluye hacia los orificios de las arterias coronarias. El flujo sanguíneo hacia las arterias coronarias es mayor durante la diástole ventricular.




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