a large venous channel in the heart wall that receives blood via the coronary veins and empties into the right atrium.
coronary sinus n.
A short trunk receiving most of the veins of the heart, running in the posterior part of the coronary sulcus and emptying into the right atrium between the inferior vena cava and the atrioventricular orifice.
- Coronary sulcus
coronary sulcus n. A groove on the outer surface of the heart marking the division between the atria and the ventricles. Also called atrioventricular groove.
- Coronary valve
coronary valve n. A fold of endocardium at the opening of the coronary sinus into the right atrium.
noun, Anatomy. 1. any of several veins that receive blood from the heart wall and empty into the coronary sinus. coronary vein n. Any of the veins that drain blood from the muscular tissue of the heart and empty into the coronary sinus.
[kawr-uh-neyt, kor-] /ˈkɔr əˌneɪt, ˈkɒr-/ adjective 1. having or wearing a , coronet, or the like. verb (used with object), coronated, coronating. 2. to (a sovereign).