Final answer:
c. mitral The mitral valve is the most commonly affected valve in valvular heart disease, with conditions such as mitral regurgitation being prevalent.
Step-by-step explanation:
The valve most frequently involved in valvular heart disease is the mitral valve. This valve, also known as the bicuspid valve or left atrioventricular valve, is located between the left atrium and left ventricle and has two cusps. The mitral valve can be affected by a condition known as mitral regurgitation, which is common and detected in about 2 percent of the population, making it the most commonly affected valve in valvular heart disease. The pulmonary valve is the least frequently involved. Malfunction of any heart valve can cause an insufficiency, designated by the valve name such as mitral insufficiency, which disrupts the normal flow of blood. The proper order through which blood flows from the vena cava through the heart is tricuspid, pulmonary semilunar, bicuspid (mitral), and aortic semilunar.
The valve most frequently involved in valvular heart disease is the mitral valve. Valvular heart disease refers to conditions that affect the heart valves, such as stenosis (narrowing) or regurgitation (leaking) of the valves. The mitral valve is located between the left atrium and left ventricle, and it prevents backflow of blood from the left ventricle to the left atrium. When the mitral valve is diseased or damaged, it can lead to various heart problems