The<unk>  (eustachian valve, valvulae<unk> e<unk> e<unk> is) is the valve at the distal end of the<unk> <unk> <unk> . It passes blood from the lower extremities into the right atrium.
Valve of the inferior vena cava
Valve of the coronary sinus
Aortic sinus
Thoracic aorta
Apex of the heart
Coronary sinus
Pericardiacophrenic artery
Descending aorta