ABSTRACT
The cervix uteri is the lower part of the uterus (womb). This cylindrical-shaped muscular structure is about 3–5 cm in length and partly lies in the upper vagina, extending behind the bladder and in front of the rectum (Fig. 1). It is composed mainly 94of involuntary muscle superiorly and fibrous connective tissue inferiorly. It is lined by squamous epithelium on the ectocervix, and columnar epithelium on the endocervix. The position of the squamocolumnar junction varies depending on the age of the woman. Likewise the size of the cervix varies, increasing at puberty, during reproductive age, and throughout pregnancy, and then reducing after menopause. Normal cervix showing a cervical ectropion. https://s3-euw1-ap-pe-df-pch-content-public-u.s3.eu-west-1.amazonaws.com/9780429159565/811ac85f-a2fd-419d-ad19-eb9397a09b87/content/fig23_1.jpg"/>
