Support of uterus
supports of uterus ligaments pelvic floor anatomy diagram

This medical anatomical diagram illustrates a superior view of the female pelvis and internal reproductive organs. Centrally, the uterus (a) is positioned posterior to the urinary bladder (f) and anterior to the rectum (g). Extending laterally from the uterine horns are the round ligaments (b), fallopian tubes (c), and the ovaries (d), which are anchored by the ovarian ligaments (e). The broad ligament (h) is depicted as a wide peritoneal fold draping over these structures and extending to the pelvic side walls. A dashed line indicates the path of the ureteric fold (i) beneath the peritoneum. Notably, the diagram highlights a broad ligament defect (j) on the left side, located caudal to the round ligament. This visual representation serves as an educational guide for identifying Type 1 defects according to the Cilley classification, which are clinically significant as potential sites for internal hernias of the bowel. The diagram uses a combination of solid lines for superficial structures and dashed lines for retroperitoneal or obscured landmarks, providing a clear topographic map of pelvic surgical anatomy.

Anatomical Diagram: A black-and-white schematic illustration demonstrating the surgical fixation of the round ligaments to the anterior rectus fascia, likely for the management of pelvic organ prolapse. The diagram provides an anterior view of the uterus and its supporting structures. The uterine fundus is shown in the center, with the round ligaments extending bilaterally. These ligaments are depicted being pulled cranially and looped through small fenestrations in the rectus abdominis muscle layer. The apical 'ans' or loop of each round ligament is secured to the overlying fascia using three distinct sutures, represented by 'x' markers. Additional adnexal structures, including the fallopian tubes and utero-ovarian ligaments, are visible extending from the uterine cornua. The illustration emphasizes the anatomical relationship between the pelvic viscera and the abdominal wall fascia during a suspension procedure, highlighting the point of mechanical support and the method of non-absorbable suture fixation used to stabilize the uterine position.

This dual-panel image provides a comparison between a schematic diagram and an axial T1-weighted fat-saturated MR image illustrating 'Stage 0' pelvic endometriosis. The left panel is a labeled diagram identifying key pelvic anatomy including the bladder (B), uterus (U), rectosigmoid (RS), ovaries (O), and uterosacral ligaments (USL). It highlights an endometrial cyst (E), hematosalpinx (H), and superficial peritoneal implants (i). The right panel shows a corresponding diagnostic MR image of the female pelvis. A prominent hyperintense (bright) cystic lesion labeled 'E' represents an ovarian endometrioma, characteristic of blood-filled contents on T1-weighted fat-saturated sequences. Adjacent to this, a white arrow indicates a small focus of intermediate-to-high signal intensity corresponding to a superficial peritoneal implant located near the uterosacral ligament and rectosigmoid (RS). Other visible landmarks include the uterus (Ut) and pelvic musculature. The image demonstrates the diagnostic criteria for early-stage endometriosis (Endo-Stage MRI classification), focusing on the identification of superficial lesions and ovarian involvement without deep pelvic infiltration.

This medical illustration depicts a bilateral sacrospinous colposuspension (BSC) procedure for pelvic organ prolapse (POP) repair. The diagram features a translucent anatomical model of the uterus and cervix in a vertical orientation. A synthetic, white, macroporous mesh with a distinct hexagonal pattern is shown providing apical support. The mesh is anchored bilaterally, extending from the cervical region to simulate the function of natural pelvic ligaments (uterosacral and cardinal ligaments). This surgical setup illustrates the symmetrical suspension of the uterus to the sacrospinous ligaments, intended to recreate a stable pelvic floor and correct apical descent. The illustration is designed for surgical education, highlighting the interaction between prosthetic mesh material and gynecological structures in minimally invasive urogynecological reconstruction.
"The uterus is mainly supported by the pelvic floor muscles, not by the abovementioned ligaments."
| Level | Structures | Function |
|---|---|---|
| Level I (Apical) | Cardinal ligament + uterosacral ligament complex | Maintains vaginal/uterine length and axis; prevents apical prolapse (uterine or vault) |
| Level II (Midvaginal) | Paravaginal attachments to arcus tendineus fasciae pelvis (ATFP) and levator fascia | Maintains midline position of vagina; defects cause cystocele/rectocele |
| Level III (Distal) | Muscles and connective tissue around distal vagina and perineum | Supports distal vagina; prevents gaping introitus |
