Inner Surface of the Anterior Abdominal WallSupravesical fossa
Medial inguinal fossa
- Is a depression on the anterior abdominal wall between the median and medial umbilical folds of the peritoneum.
Lateral inguinal fossa
- Is a depression on the anterior abdominal wall between the medial and lateral umbilical folds of the peritoneum. It lies lateral to the supravesical fossa.
- Is the fossa where most direct inguinal hernias occur.
- Is a depression on the anterior abdominal wall, lateral to the lateral umbilical fold of the peritoneum.
Umbilical folds or ligamentsMedian umbilical ligament or fold
Medial umbilical ligament or fold
- Is a fibrous cord, the remnant of the obliterated urachus , which forms a median umbilical fold of peritoneum.
- Lies between the transversalis fascia and the peritoneum and extends from the apex of the bladder to the umbilicus.
Lateral umbilical fold
- Is a fibrous cord, the remnant of the obliterated umbilical artery , which forms a medial umbilical fold and extends from the side of the bladder to the umbilicus.
- Is a fold of peritoneum that covers inferior epigastric vessels and extends from the medial side of the deep inguinal ring to the arcuate line.
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- Is the lining fascia of the entire abdominopelvic cavity between the parietal peritoneum and the inner surface of the abdominal muscles.
- Continues with the diaphragmatic, psoas, iliac, pelvic, and quadratus lumborum fasciae.
- Forms the deep inguinal ring and gives rise to the femoral sheath and the internal spermatic fascia.
- Is directly in contact with the rectus abdominis below the arcuate line.