The vesical arteries are blood vessels that supply oxygenated blood to the bladder. They typically branch off from the internal iliac artery, which is a major artery in the pelvis. There are usually two vesical arteries: the superior vesical artery and the inferior vesical artery, each serving different parts of the bladder. The superior vesical artery primarily supplies the upper part of the bladder, while the inferior vesical artery supplies the lower part. These arteries play a crucial role in maintaining the health and function of the bladder by ensuring it receives adequate blood flow.