This is an important area of the female reproduction system

It is part of the uterus on the lower portion where it follows into the vagina.

It is circular and cylindrical in shape.

Only 1/2 is visible in the vaginal region when viewed during a medical examination.

Several aspects include:

1.)    Ectocervix

      -    called the portio vaginalis
      -    this portion is found in the vagina

2.)   External os

      -    This is the circular opening of the Ectocervix
      -    The shape of the opening will change on age [minor] and previous vaginal birth [major]

3.)   Endocervical canal

      -   Passageway between the uterus and vagina

4.)   Internal os

      -   This is the opening prior to entrance into the endocervical canal

Cervical fluid

This mucus that blocks the external os during menstruation

This blocks sperm from entering the uterus

However, during ovulation “other” mucus is formed that allows sperm to be guided into uterus.

Function

The function of cervix is seen for female reproduction

Another function is the pathway during birth and the “dilation” necessary for birth.

Orgasms in some women are related to cervical narrowing