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The human uterus is positioned within the pelvic region right away behind and almost overlying the bladder, and in the front of the sigmoid colon. The human uterus is pear-fashioned and approximately 7.6 cm (3.0 in) long, 4.5 cm (1.8 in) broad (side to side), and 3.0 cm (1.2 in) thick. A regular adult uterus weighs approximately 60 grams. The uterus may be divided anatomically into four areas: the fundus – the uppermost rounded part of the uterus, the corpus (frame), the cervix, and the cervical canal. The cervix protrudes into the vagina. The uterus is held in position within the pelvis by ligaments, which can be a part of the endopelvic fascia. These ligaments include the pubocervical ligaments, the cardinal ligaments, and the uterosacral ligaments. It is protected by using a sheet-like fold of peritoneum, the wide ligament.