Reproductive Uterus

Description

Shown in profile, the uterus (womb, metra, hystera) is organized into the uterine body (corpus uteri) superiorly and the cervix uteri inferiorly, with the isthmus uteri forming a narrow constriction between them. The rounded fundus lies most superior, while the cervical canal runs inferiorly toward the external os in the vaginal portion of the cervix. Anterior and posterior surfaces of the uterine body are implied by the sagittal orientation, with the cervix positioned more inferior and posterior relative to the bladder-facing anterior aspect of the corpus. Clear segmental anatomy. Teaching the reproductive uterus hinges on this transition zone. The isthmus and internal os define the lower uterine segment that becomes clinically dominant in late pregnancy and is the usual site of a low transverse (Pfannenstiel) cesarean uterine incision, chosen to reduce hemorrhage and preserve contractile myometrium of the fundus. The cervix, with its supravaginal and vaginal parts, frames how cervical effacement and dilation are described in labor and why transformation-zone pathology at the ectocervix matters for Pap screening and colposcopy. Use this artwork for gross anatomy and embryology lectures on uterine morphology, OB-GYN teaching files explaining the lower uterine segment and cesarean technique, and medical publishing layouts that need clean uterine segmentation without distracting adnexal detail. Anatomical accuracy verified by SciePro's Medical Advisory Board.