the transcatheter aortic valve replacement

heart ventricle atrium valve key cardiac septum wall pulmonary artery aorta coronary superior vena cava vein bicuspid semilunar auscultation landmarks papillary muscle endocardium pericardium left right cardiovascular system capillary systemic circulation blood vessels flow organ attack lung chest ribcage rib sternum disease health stethoscope human biology anatomy anthropology