Model of the internal anatomy of an adult female genitourinary tract (posterior view of a median section). The following organs are represented from left to right: the urinary bladder, the uterus, the broad ligament of the uterus, which holds the ovary (in flesh color) in place, and the rectum, terminal part of the large intestine that forms an arc and ends with the anus. The urethra, draining urine from the bladder, the vagina, prologation of the uterus, and the end of the rectum are visible in section on the left of the picture. These organs are held in place by the peritoneum folds (in white), a highly vascularized membrane. At the uterine level, the membrane is known as the perimetrium, and at the broad ligament, the mesovarium. The ureter (in yellow), carrying urine from the kidney to the bladder, and the ovarian artery (in red) and vein (in blue) cross above the uterus.