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Apr 24, 2024 · valve, in anatomy, any of various membranous structures, especially in the heart, veins, and lymph ducts, that function to close temporarily a passage or orifice, permitting movement of a fluid in one direction only. A valve may consist of a sphincter muscle or two or three membranous flaps or folds. In the heart there are two valves that ...
May 6, 2024 · valve, in mechanical engineering, device for controlling the flow of fluids (liquids, gases, slurries) in a pipe or other enclosure. Control is by means of a movable element that opens, shuts, or partially obstructs an opening in a passageway. Valves are of seven main types: globe, gate, needle, plug (cock), butterfly, poppet, and spool.
Apr 16, 2024 · The mitral valve is one of four heart valves that control blood flow in the heart. It's located between the upper and lower left heart chambers. Mitral valve repair and mitral valve replacement may be done as an open-heart surgery or as a minimally invasive surgery. The method used depends on how severe the mitral valve disease is and if it's ...
Apr 16, 2024 · Valvuloplasty. A valvuloplasty is a treatment to repair a heart valve that has a narrowed opening. Narrowing of a heart valve is called valve stenosis. Four heart valves — the aortic, mitral, tricuspid and pulmonary valves — open and close to let blood flow through the heart. In a narrowed heart valve, the valve flaps, also called leaflets ...
Apr 18, 2024 · Here’s how to find these isolation valves: Toilets: check for a valve on the wall or floor adjacent to the toilet. Bathtub: get to the plumbing access panel. Sink: look underneath for shut-off ...
May 3, 2024 · The pulmonary heart valve opens, allowing deoxygenated blood to leave the right ventricle and flow to the lungs via the pulmonary artery. Once the right ventricle has emptied, the pulmonary heart valve closes, thereby keeping the blood from reentering the right ventricle.
4 days ago · heart valve noun : any of the valves that control blood flow to and from the heart and that include the atrioventricular valves, the aortic valve, and the pulmonary valve
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