The systemic circulation describes the extensive collection of arteries that distribute oxygenated blood to the tissue of the body and return deoxygenated blood to the heart. Once returned to the right atrium of the heart, deoxygenated venous blood is...

Systemic circulation is the portion of the cardiovascular system which carries oxygenated blood away from the heart, to the body, and returns deoxygenated blood back to the heart. The term is contrasted with pulmonary...

When it came to discovering how things worked, William Harvey cut right to the heart of the matter.Literally.He could often be found in his operating room, deftly cutting apart a deer, a chicken, a cow and even a cadaver to examine their various organs and...