| median umbilical fold | A fold of peritoneum on the anterior wall of the abdomen covering the urachus, or remains of the allantoic stalk. Synonym: plica umbilicalis mediana, middle umbilical fold, plica umbilicalis media, plica urachi, urachal fold. (05 Mar 2000) |
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| median umbilical ligament | <anatomy> The remnant of the urachus, contained in the median umbilical fold; it persists as a midline fibrous cord between the apex of the bladder and the umbilicus. Synonym: ligamentum umbilicale medianum, middle umbilical ligament, urachal ligament. (05 Mar 2000) |
| percutaneous umbilical blood sampling | See: PUBS. (12 Dec 1998) |
| middle umbilical fold | A fold of peritoneum on the anterior wall of the abdomen covering the urachus, or remains of the allantoic stalk. Synonym: plica umbilicalis mediana, middle umbilical fold, plica umbilicalis media, plica urachi, urachal fold. (05 Mar 2000) |
| middle umbilical ligament | <anatomy> The remnant of the urachus, contained in the median umbilical fold; it persists as a midline fibrous cord between the apex of the bladder and the umbilicus. Synonym: ligamentum umbilicale medianum, middle umbilical ligament, urachal ligament. (05 Mar 2000) |
| prolapse of umbilical cord | Presentation of part of the umbilical cord ahead of the foetus; it may cause foetal death due to compression of the cord between the presenting part of the foetus and the maternal pelvis. (05 Mar 2000) |
| hernia, umbilical | The protrusion of part of the intestine at the umbilicus. (12 Dec 1998) |
| sulcus of umbilical vein | <anatomy, vein> The sulcus on the foetal liver occupied by the umbilical vein. Synonym: sulcus venae umbilicalis. (05 Mar 2000) |
| umbilical | <anatomy> As pertains to the umbilicus (belly button). (27 Sep 1997) |
| umbilical arteries | Either of a pair of arteries originating from the internal iliac artery and passing through the umbilical cord to carry blood from the foetus to the placenta. (12 Dec 1998) |
| umbilical cord | The flexible structure, giving passage to the umbilical arteries and vein, which connects the embryo or foetus to the placenta. (12 Dec 1998) |
| umbilical cyst | A small red sessile or pedunculated tumour at the umbilicus in an infant; it is due to the persistence of a segment of the vitellointestinal duct. Synonym: umbilical cyst. (05 Mar 2000) |
| umbilical duct | A narrow tube present in the early embryo that connects the midgut of the embryo (through the umbilical opening) to the yolk sac outside the embryo. Later in development, the yolk stalk is usually obliterated but a remnants of it may persist, most commonly as a finger-like protrusion from the small intestine known as meckel's diverticulum. Found in 2-4% of people, meckel's diverticulum may become inflamed much like the appendix and require surgical removal. The yolk stalk is also called the umbilical duct, vitelline duct, or oomphalomesenteric duct. (12 Dec 1998) |
| umbilical fissure | A cleft on the inferior surface of the liver, running from the inferior border to the left extremity of the porta hepatis; it lodges the round ligament of the liver. Synonym: fissura ligamenti teretis, fissure for ligamentum teres, fossa venae umbilicalis, umbilical fissure, umbilical fossa. (05 Mar 2000) |
| umbilical fistula | A fistula of intestine or urachus at the umbilicus. (05 Mar 2000) |