Outer Presentation of the Total Uterine Blood Supply

Description

External uterine vasculature is presented with emphasis on the bilateral uterine arteries approaching the cervix at the level of the internal os and then ascending tortuously along the lateral uterine wall toward the fundus. Along their course, arcuate arteries sweep circumferentially within the myometrium and give rise to radial branches directed medially toward the endometrium, while ovarian arteries may be inferred superiorly near the uterine cornua where they anastomose with the uterine artery. Venous return parallels the arterial pattern, with a uterine venous plexus along the broad ligament draining inferiorly toward the internal iliac veins. Orientation is lateral-dominant, keeping the cervix inferior and the fundus superior for clear proximal to distal vessel tracking. Clinically, this outer presentation matches what surgeons encounter during hysterectomy, myomectomy, and uterine artery ligation, where the uterine artery crosses superior to the ureter near the cervix (water under the bridge). That relationship drives key steps in controlling hemorrhage and avoiding ureteric injury. The depiction also supports teaching the hemodynamic basis of postpartum hemorrhage management, including uterine artery embolization and the role of uterine-ovarian anastomoses in collateral flow. Obstetrics and gynecology courses use this layout to anchor uterine vascular territories, venous plexus anatomy, and procedural landmarks for pelvic surgery. It also fits textbook figures and patient-facing diagrams explaining fibroid treatments, cesarean-related bleeding control, and pelvic ligation techniques. Anatomical accuracy verified by SciePro's Medical Advisory Board.