great cardiac vein


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Related to great cardiac vein: middle cardiac vein, Oblique vein, small cardiac vein

great car·di·ac vein

[TA]
begins at the apex of the heart (where it anastomoses with the middle cardiac vein), runs first with the anterior interventricular artery as it ascends the anterior interventricular groove, then turns to the left as it approaches or reaches the coronary groove to run with the circumflex branch of the left coronary artery; it merges with the oblique vein of the left atrium to form the coronary sinus.

great cardiac vein

one of the five tributaries of the coronary sinus, beginning at the apex of the heart and ascending along the anterior interventricular sulcus to the base of the ventricles. It then curves left in the coronary sulcus, reaches the back of the heart, and opens into the left part of the coronary sinus. It receives various tributaries from the left atrium. The great cardiac vein drains the blood through its tributaries from the capillaries of the myocardium. Also called vena cordis magna. Compare middle cardiac vein, small cardiac vein.

great car·di·ac vein

(grāt kahr'dē-ak vān) [TA]
Begins at the apex of the heart (anastomoses with the middle cardiac vein), runs first with the anterior interventricular artery as it ascends the anterior interventricular groove, then turns to the left as it approaches or reaches the coronary groove to run with the circumflex branch of the left coronary artery; it merges with the oblique vein of the left atrium to form the coronary sinus.

great cardiac vein

A large vein on the anterior surface of the heart; it runs in the anterior interventricular groove alongside the left anterior descending artery. It drains the same area of the heart that is supplied by the artery, and it also receives blood from the left marginal vein. The great cardiac vein follows the coronary sulcus to the left to empty into the coronary sinus on the posterior surface of the heart.
See also: vein