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How blood that has supplied the heart muscle is collected and returned, mostly through the coronary sinus into the right atrium.
Most heart blood goes coronary sinus to right atrium; the great, middle and small cardiac veins feed it, while tiny Thebesian veins drain straight into the chambers.
Coronary Arteries
The arteries that supply oxygenated blood to the heart muscle itself.
The Right Atrium
The heart chamber that receives deoxygenated blood from the body through the venae cavae and the coronary sinus and passes it to the right ventricle.
The Arch of the Aorta
The curved top of the aorta in the chest that gives off the great arteries to the head and arms and arches over the root of the left lung.
Arterial Anastomoses and Collateral Circulation
The links between neighbouring arteries that provide an alternative route for blood if one vessel is blocked.