The muscular inverted pear-shaped hollow organ behind the bladder and in front of the rectum is called the uterus. The lower narrow part of the uterus is called the cervix, the middle part is called the corpus and the upper part is called the fundus. The uterine wall is made up of 3 layers. The outer layer is called the perimetrium, the middle layer is the myometrium and the inner layer is the endometrium. Uterus length 8 cm, width 5 cm, thickness 3 cm and weight 60 g. At gestation the length is 20 times and the weight is 1 kg.
Function: The zygote is implanted in the uterus and the embryo develops. Amara is formed from the uterine wall.