Anatomy of the Heart . Left atrium (not in diagram) – the left upper chamber of the heart that receives oxygenated blood from the lungs via the pulmonary veins and then pumps it to .
U of M: General College: web anatomy. . Web Anatomy Home. WebAnatomy home. Cardiovascular system. Heart. Internal Heart 1; Internal Heart 2; Internal Heart 3; Internal Heart 4; External Heart 1; .
Atrioventricular Canal Defect Diagram Atrioventricular Canal Defect. A large hole in the center of the heart where the wall between the upper chambers joins the wall between the lower chambers. .