Which venous structure does not empty blood into the right atrium

The coronary sinus is the venous structure that does not empty blood into the right atrium. The coronary sinus is a collection of veins joined together to form a large vessel that collects blood from the heart muscle (myocardium). It receives blood mainly from the small, middle, great and oblique cardiac veins. It also receives blood from the left marginal vein and the left posterior ventricular vein.

Ibelieve it would be d (side effect) sorry if i'm wrong(:

Force and balance. you get agility from balance and the force you use, and leverage can only be attained by using the force to get it. hope that