uterine segments

u·ter·ine seg·ments

(yū'tĕr-in seg'mĕnts)
1. Lower: the isthmus of the uterus, the lower extremity of which joins with the cervical canal and, during pregnancy, expands to become the lower part of the uterine cavity.
2. Upper: the main portion of the body of the gravid uterus, the contraction of which furnishes the chief expulsive force in labor.
References in periodicals archive ?
It was reported that women with an elective CS history had thicker lower uterine segments at term, and this might imply better healing in elective CS compared with women who had an emergency CS.
Variables influencing the integrity of lower uterine segment in post-cesarean pregnancy.
Impact of labor at prior cesarean on lower uterine segment thickness in subsequent pregnancy.
There is a differential growth of upper and lower uterine segments as pregnancy advances.
Placenta previa is an obstetric complication in which the placenta is inserted partially or wholly in the lower uterine segment.
Uterine segments were sectioned (6 m in thickness) and mounted on slides.
Incidental extensions or lacerations of a uterine incision during a CS, postpartum separation of the uterine scar resulting from infection, or extremely thin lower uterine segments without disruption of the uterine wall were not considered URs.