Internal orifice of the uterus

From Wikipedia, the free encyclopedia
Jump to: navigation, search
Internal orifice of the uterus
Gray1167.svg
Posterior half of uterus and upper part of vagina.
Latin orificium internum uteri
Gray's p.1259

The internal orifice of the uterus (or internal orifice of the cervix uteri or internal os) is an interior narrowing of the uterine cavity. It corresponds to a slight constriction known as the isthmus that can be observed on the surface of the uterus about midway between the apex and base.

See also[edit]

External links[edit]

This article incorporates text from a public domain edition of Gray's Anatomy.