The endometrium is the innermost lining layer of the uterus, and functions to prevent adhesions between the opposed walls of the myometrium, thereby maintaining the patency of the uterine cavity. During the menstrual cycle or estrous cycle, the endometrium grows to a thick, blood vessel-rich, glandular tissue layer.

Where is endometrium and myometrium located?

The myometrium is located between the endometrium (the inner layer of the uterine wall) and the serosa or perimetrium (the outer uterine layer).

What is endometrium and its function?

The endometrium is the inner lining of the uterus. Each month, the endometrium thickens and renews itself, preparing for pregnancy. If pregnancy doesn't occur, the endometrium sheds in a process known as menstruation.