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In human anatomy, the median umbilical ligament is an unpaired midline ligamentous structure upon the lower inner surface of the anterior abdominal wall. [1] It is covered by the median umbilical fold. [citation needed] The median umbilical ligament represents the remnant of the fetal urachus.
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]
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
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 ).
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]
The remainder of the vesico-urethral portion forms the body of the bladder and part of the prostatic urethra; its apex is prolonged to the umbilicus as a narrow canal, the urachus, which later is obliterated and becomes the median umbilical ligament of the adult.
At birth, when the placental circulation ceases, the pelvic portion only of the umbilical artery remains patent gives rise to the superior vesical artery (or arteries) of the adult; the remainder of the vessel is converted into a solid fibrous cord, the medial umbilical ligament (otherwise known as the obliterated hypogastric artery) which ...
Umbilical ligament may refer to: Median umbilical ligament (Ligamentum umbilicale medianum) Medial umbilical ligament (Ligamentum umbilicale mediale)