Cervix uteri

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The lower part of the uterus extending from the isthmus of the uterus into the vagina, and is divided into supravaginal and vaginal parts by its passage through the vaginal wall


The term cervix uteri is a Latin word which is translated as the cervix of the uterus or the "neck" of the uterus. The term denotes to the narrow canal connecting the uterine cavity and the lumen of the vagina. It is found in the lower part of the uterus and is part of the female reproductive system. When not pregnant, the cervix is typically cylindrical and measures between 2 and 3 cm long. The opening into the vagina is termed the external os whereas the opening into the uterus is referred to as the internal os. The portion of the cervix of the uterus that bulges into the top of the vagina is called the extocervix or the portio. The extocervix projects into the anterior wall of the vagina between the anterior and posterior fornices vaginae.1


See also:

1 Vaginal portion of cervix. (2015). Wikipedia.org. Retrieved from |Link

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