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block14_43.jpg - Fig. 22, R-4-c, Cervix uteri, H&EThe portion of the cervix that projects into the vagina, the ectocervix (Ec), is covered with a stratified squamous epithelium. An abrupt transition (arrow) from this squamous epithelium to columnar epithelium, the endocervix (Enc), occurs at the entry to the cervical canal (CC). The upper end, the internal os (IOs), communicates with the uterine cavity, and the lower end, the external os (EOs), communicates with the vagina.

Fig. 22, R-4-c, Cervix uteri, H&E The portion of the cervix that projects into the vagina, the ectocervix (Ec), is covered with a stratified squamous epithelium. An abrupt transition (arrow) from this squamous epithelium to columnar epithelium, the endocervix (Enc), occurs at the entry to the cervical canal (CC). The upper end, the internal os (IOs), communicates with the uterine cavity, and the lower end, the external os (EOs), communicates with the vagina.
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