Median umbilical ligament

Median umbilical ligament
Posterior view of the anterior abdominal wall in its lower half. The peritoneum is in place, and the various cords are shining through. Median umbilical ligament isn't labeled, but it is located just underneath the median umbilical fold, seen in the center of the diagram
Latin	ligamentum umbilicale medianum

The median umbilical ligament is a structure in human anatomy. It is a shrivelled piece of tissue that represents the remnant of the embryonic urachus.

It extends from the apex of the bladder to the umbilicus, on the deep surface of the anterior abdominal wall. It is unpaired.

It is covered by the median umbilical fold

Lateral to this structure are the medial umbilical ligament (which is a different structure, not to be confused) and the lateral umbilical ligament.

Significance

It may be used as a landmark for surgeons who are performing laparoscopy, such as laparoscopic inguinal hernia repair. Other than this, it has no function in a born human and may be cut or removed with impunity.

External links

• Median umbilical ligament
  • SUNY Figs 36:01-01 - "The inguinal canal and derivation of the layers of the spermatic cord."
  • SUNY Labs 44:04-0105 - "The Male Pelvis: The Urinary Bladder"
  • SUNY Anatomy Image 7576

• Median umbilical fold
  • SUNY Figs 36:03-12 - "Internal surface of the anterior abdominal wall."