Size counts in this case, both of the oven and the potato. Assuming a normal 1200 watt microwave, one would place the potato on the plate in the oven (after scoring with the fork or knife) and microwave for about 8 minutes when placed on a rotating carousel. If you don't have one, then you must do it manually.
Home Â» Heart valve. Definition. noun, plural: heart valves. (anatomy) Any of the valves of the heart that prevents the back flow of blood through its cusps or flaps of tissues. Supplement. In humans, there are four main valves of the heart: (1) left atrioventricular valve, (2) right atrioventricular valve, (3) aortic valve, and (4) pulmonary valve. The left and right atrioventricular valves are also called mitral valve and tricuspid valve, respectively.
The semilunar valves (SV) are two valve structures that sit between the right ventricle and the pulmonary artery and between the left ventricle and the aorta. The flaps of the valves open and close to allow the unidirectional flow of blood out of the heart, while preventing backflow of blood.he semilunar valves open to let blood pass out of the ventricles. The right ventricle pumps into the pulmonary artery, which leads to the lungs, and the left ventricle empties into the aorta, a main artery that distributes oxygen rich blood to the rest of the body.