Median umbilical ligament

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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,
ligamentum suspensorium vesicae urinariae
TA A08.3.01.007
FMA 16568
Anatomical terminology

The median umbilical ligament or Xander's ligament[1] 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.


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.


  1. ^ ARTexplains (2017-06-17), Where Does The Belly Button Go?, retrieved 2017-06-17 

External links[edit]

  • Median umbilical ligament
  • Median umbilical fold
    • Anatomy figure: 36:03-12 at Human Anatomy Online, SUNY Downstate Medical Center - "Internal surface of the anterior abdominal wall."