: Each valve typically consists of three thin, flexible leaflets (cusps) made of connective tissue and endocardium.
: Located between the right ventricle and the pulmonary artery . It directs deoxygenated blood toward the lungs for oxygenation. Structural Features semilunar valve
: These are small pockets behind the valve leaflets that help them close efficiently as blood pressure in the arteries rises. : Each valve typically consists of three thin,
: Unlike atrioventricular (AV) valves, semilunar valves do not have chordae tendineae (heart strings) or papillary muscles to hold them in place. semilunar valve
There are two main semilunar valves, each positioned at a critical exit point of the heart: