What was the purpose of that interface organ in her vaginal canal?

The cervix is the part of the uterus which protrudes into the vaginal canal.

Five years after Johnny was born, the doctor had found a number of benign tumors in her uterus and vaginal canal.

The vaginal canal is totally intact after this type of surgery.

A sharp object was repeatedly inserted into her vaginal canal.

This allows direct observation by the physician into the vaginal canal with the help of a lamp or a mirror.

Sondra pushed - and the top of the baby's head popped out of the vaginal canal.

"Two years of electrolysis would tighten up anybody's vaginal canal."