Chapter 26, Problem 20CYR

Summary Introduction

Introduction:

The inner epithelial cell layer of a mammalian uterus is called endometrium. The endometrium is composed of a basal layer and a functional layer. During the menstrual phase of the uterine cycle, the endometrium sheds, which causes menstruation. The basal layer of the endometrium is located adjacent to the myometrium and below the functional layer, while the functional layer is located adjacent to the uterine cavity. The endometrium is responsible for maintaining the patency of the uterine cavity by preventing adhesions between opposite walls of the myometrium.