OMIA:000781-9940 : Patent urachus in Ovis aries

In other species: domestic cat , white rhinoceros , mountain zebra , dog

Categories: Embryo phene

Links to MONDO diseases: No links.

Mendelian trait/disorder: unknown

Considered a defect: yes

Cross-species summary: The urachus is a canal present in the foetus, connecting the bladder with the allantois via the navel. It normally disappears after birth. A patent urachus is one which persists after birth, allowing urine to drip out of the bladder through the umbilicus.


1969 Dennis, S.M. :
Patent urachus in a neonatal lamb Cornell Veterinarian 59:581-584, 1969. Pubmed reference: 5389256 .

Edit History

  • Created by Frank Nicholas on 06 Sep 2005