The Middle Rectal Artery is a blood vessel that supplies oxygenated blood to the rectum. It branches off from the Internal Iliac Artery, which is a major artery in the pelvis. This artery plays a crucial role in maintaining the health of the rectal tissues by providing necessary nutrients and oxygen. In addition to the Middle Rectal Artery, the rectum also receives blood from the Superior Rectal Artery and the Inferior Rectal Artery. These arteries work together to ensure proper blood flow, supporting the functions of the rectum and surrounding structures in the pelvic region.