cervical os


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cervical os

cervical os

Anatomy The opening of the uterine cervix which is covered by squamous epithelium. See Cervical incompetence, Transformation zone.
References in periodicals archive ?
Difficulty in dilating the internal cervical os is a common problem in performing curettage.
It is considered complete when it extends to the external cervical os.
Cervical length was determined by the simultaneous visualisation of the internal and external cervical os and their measurement across the endocervical channel.
Cervical length and dilatation of the internal cervical os detected by vaginal ultrasonography as markers for preterm delivery: a systematic review.
It's been nearly 2 decades since researchers first described dilation and effacement in normal, term pregnancies as a progression of the funnel-or T-shaped internal cervical os to a Y shape, then a V shape, and finally a U shape (J.
A 42-year-old woman presented with a pedunculated necrotic mass extending through the cervical os.
The catheter's unique design allows for easy cervical passage and the soft silicone balloon occludes the internal cervical OS.
The distance between the external cervical os and the leading edge of the gestational sac ranged from 7 to 25 mm.
Luigi Selvaggi in Italy were the first, however, to describe the utilization of a vaginoscopic approach to office hysteroscopy for evaluating the endocervical canal and uterine cavity in addition to the vagina and external cervical os.
In this procedure, a transcervical balloon catheter is passed through the internal cervical os and inflated, and then a transvaginal probe is used to visualize the uterine cavity.
Using any cutting device (such as monopolar or bipolar cautery, laser, or Harmonic Scalpel), amputate the cervix, beginning at the level of the internal cervical os.