What kind of tissue is bicuspid aortic valve?

The bicuspid aortic valve is composed of dense connective tissue, mainly consisting of collagen and elastin fibers. It is a type of fibrous connective tissue, specifically classified as dense irregular connective tissue. The valve leaflets, which control the flow of blood from the heart into the aorta, are composed of three layers: a layer of endothelium on the luminal side (facing the blood flow), a layer of connective tissue in the middle, and a layer of smooth muscle cells on the aortic side. This combination of tissues provides strength, flexibility, and durability to the valve, enabling it to function properly in regulating blood flow.