A venous valve is bicuspid (possessing two leaflets) and is formed by an infolding of Element of the tunica intima on possibly side from the lumen from the veins. The leaflets are strengthened with collagen, and elastic fibres, and covered with endothelium.[ten] The endothelial cells over the surfaces of the http://sgvascularctr.com/understanding-venous-leak-treatment-in-singapore/