structure of the heart valves anatomy. mitral valve, pulmonary valve, aortic valve and the tricuspid valve

anatomy anterior aorta aortic artery atrium attack biology blood body cardiac cardiology cardiovascular circulation coronary cross diagram disease education flow health healthy heart human illustration left medical medicine mitral muscle organ posterior pulmonary pump right science section side stenosis structure system systole systolic tricuspid valve valves valvular vector vein ventricle