Osmosis video - Cervix and vagina histology

The cervix is a short, cylindrical neck of tissue that connects the uterus to the vagina. The cervical mucosa has three visibly distinct zones: The endocervix: made of the simple columnar epithelium. The ectocervix: made of a non-keratinized stratified squamous epithelium. The transformation zone: has both squamous and columnar cells.

The vagina is a tube of muscle that leads from the cervix to the outside of the body. The wall consists of three main layers: the inner mucosa, the muscular, and the adventitia. The inner mucosa has a non-keratinized stratified squamous epithelium that keeps it moist and protects it from infection.