Semilunar Valve Online

: Unlike atrioventricular (AV) valves, semilunar valves do not have chordae tendineae (heart strings) or papillary muscles to hold them in place.

The are pocket-like structures in the heart that act as one-way gates between the ventricles and the major arteries. Named for their crescent-moon or "half-moon" shape, they ensure that blood flows forward into the body and lungs without leaking back into the heart. Types of Semilunar Valves

: These are small pockets behind the valve leaflets that help them close efficiently as blood pressure in the arteries rises. semilunar valve

There are two main semilunar valves, each positioned at a critical exit point of the heart:

: Located between the left ventricle and the aorta . It controls the flow of oxygen-rich blood to the rest of the body. : Unlike atrioventricular (AV) valves, semilunar valves do

: The sharp closure of these valves at the end of a heartbeat creates the second heart sound, commonly known as the "dub". What is the Pulmonary Valve? - Cleveland Clinic

: Each valve typically consists of three thin, flexible leaflets (cusps) made of connective tissue and endocardium. Types of Semilunar Valves : These are small

: Located between the right ventricle and the pulmonary artery . It directs deoxygenated blood toward the lungs for oxygenation. Structural Features