The cervix or cervix uteri is the lower part of the uterus in the human female reproductive The lower end of the cervix bulges through the anterior wall of the vagina, and is referred to as the vaginal portion of cervix (or ectocervix) while the rest.
The supravaginal portion of the cervix is separated in front from the bladder by fibrous tissue Posterior half of uterus and upper part of vagina (supravaginal portion of cervix visible but not labeled) Latin, Portio supravaginalis cervicis.
The external os is the opening between the cervix and vagina. The lip or portio (portio vaginalis cervicis) is the portion of the cervix that extends into the vagina.
The portion of the cervix projecting into the vagina is called portio vaginalis (3cm length). The ectocervix - portio vaginalis - is visible during a speculum.
Minerva Ginecol. 1963 Jun 30;15:603-5. [VAGINA AND PORTIO IN THE FETUS AT THE END OF PREGNANCY. MICROFLUOROSCOPIC ASPECTS]. [Article in.