anatomy of the human heart on a white background. the structure of the heart of man, aorta, pulmonary valve

anatomy aorta arteries artery artificial atrial attack background biology blood bloodstream body cardiac cardiovascular cava cholesterol circulation closeup contractions coronary diastole disease fat fibrillation flow glitch health healthcare heart human isolate isolated layout left medical medicine model muscle organ papillary partition pulmonary refractoriness right superior surgery system systole tendon threads valve veins vena ventricular white