The anterior and posterior walls of the uterus address the organization of the uterus, the anterior wall of the uterus being the anterior wall of the uterus and the posterior wall being the posterior wall of the uterus. The uterus is the organ that nurtures the embryo, the fetus, and produces menstruation, and its form is an inverted pear-shaped cavity organ with the shape of a uterus that is wide at the top and narrow at the bottom, and slightly flattened at the front and back. The uterus is located in the center of the pelvis, adjacent to the bladder in front and the rectum in back, and is divided into two parts: the body of the uterus and the cervix. The wall of the body of the uterus immediately adjacent to the bladder is called the anterior wall of the uterus, and the wall of the body of the uterus immediately adjacent to the rectum is called the posterior wall of the uterus. The posterior wall of the uterus is almost entirely covered with peritoneum, and its lower portion forms the anterior border of the recto-uterine pit; the anterior wall of the uterus is covered with peritoneum only in its upper portion, and its lower portion is directly connected with the posterior wall of the bladder.