Urachus
The urachus is a fibrous remnant of the allantois, a canal that drains the urinary bladder of the fetus that joins and runs within the umbilical cord. The fibrous remnant lies in the space of Retzius, between the transverse fascia anteriorly and the peritoneum posteriorly.
| Urachus | |
|---|---|
Vertical section of bladder, penis, and urethra. Urachus is seen at top | |
Urachus is #1 | |
| Identifiers | |
| MeSH | D014497 |
| Anatomical terminology | |
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