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The medial umbilical ligament, cord of umbilical artery, or obliterated umbilical artery is a paired structure found in human anatomy. It is on the deep surface of the anterior abdominal wall , and is covered by the medial umbilical folds ( plicae umbilicales mediales ).
The median umbilical ligament was jokingly referred to as "Xander's ligament" in a YouTube video published by Dr. Alexander R. Toftness (aka. ARTexplains on YouTube), and this name was subsequently used on Wikipedia for a short time. [6] This term was later used in a paper published in Mayo Clinic Proceedings.
Umbilical ligament may refer to: Median umbilical ligament (Ligamentum umbilicale medianum) Medial umbilical ligament (Ligamentum umbilicale mediale)
The medial umbilical fold is an elevation of the peritoneum (on either side of the body) lining the inner surface of the lower anterior abdominal wall formed by the underlying medial umbilical ligament (the obliterated distal portion of the umbilical artery) which the peritoneum covers. [1]
It drains the bladder of the fetus that joins and runs within the umbilical cord. [2] The fibrous remnant lies in the space of Retzius, between the transverse fascia anteriorly and the peritoneum posteriorly. At birth, the urachus develops into the median umbilical ligament. [3] [4]
A ligament is the fibrous connective tissue that connects bones to other bones. It also connects flight feathers to bones, in dinosaurs and birds. All 30,000 species of amniotes (land animals with internal bones) have ligaments. It is also known as articular ligament, articular larua, [1] fibrous ligament, or true ligament.
This latter case is due to the placement of the opening of the deep inguinal ring in the space lateral to the lateral umbilical fold, which allows the passage of the ductus deferens, testicular artery, and other components of the spermatic cord in men, or the round ligament of the uterus in women. [citation needed]
one median umbilical fold on the median umbilical ligament (which in turn, contains the urachus) two medial umbilical folds on the occluded umbilical artery two lateral umbilical folds on the inferior epigastric vessels