Superior Vena Cava And Inferior Vena Cava. The Superior Vena Cava (Svc) Is The Superior Of The Two Venae Cavae, The Great Venous Trunks That Return Deoxygenated Blood From The Systemic Circulation To The Right Atrium Of The Heart. It Is A Large-Diameter (24 Mm) Short Length Vein That Receives Venous Return From The Upper Half Of The Body, Above The Diaphragm. The Inferior Vena Cava (Or Ivc) Is A Large Vein That Carries The Deoxygenated Blood From The Lower And Middle Body Into The Right Atrium Of The Heart.

KEYWORDS

aorta arteries arterioles artery atria atrioventricular atrium blood capillaries chambers cycle deoxygenated electrical endocardium epicardium heart impulse lungs myocardium node organ oxygenated oxygenrich pulmonary pump signal signals tissue tricuspid upper veins ventricle ventricles venules