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Descriptor English: Urachus
Descriptor Spanish: Uraco
Descriptor Portuguese: Úraco
Descriptor French: Ouraque
Tree number(s): A16.890
RDF Unique Identifier: https://id.nlm.nih.gov/mesh/D014497
Scope note: An embryonic structure originating from the ALLANTOIS. It is a canal connecting the fetal URINARY BLADDER and the UMBILICUS. It is normally converted into a fibrous cord postnatally. When the canal fails to be filled and remains open (patent urachus), urine leaks through the umbilicus.
Annotation: patent urachus: index under URACHUS /abnorm: do not confuse with URACHAL CYST
Allowable Qualifiers: AB abnormalities
AH anatomy & histology
BS blood supply
CH chemistry
CY cytology
DE drug effects
DG diagnostic imaging
EM embryology
EN enzymology
GD growth & development
IM immunology
IN injuries
IR innervation
ME metabolism
MI microbiology
PA pathology
PH physiology
PP physiopathology
PS parasitology
RE radiation effects
SU surgery
TR transplantation
UL ultrastructure
VI virology
DeCS ID: 14896
Unique ID: D014497
Documents indexed in the Virtual Health Library (VHL): Click here to access the VHL documents
Date Established: 1966/01/01
Date of Entry: 1999/01/01
Revision Date: 2007/07/09
Urachus - Preferred
Concept UI M0022301
Scope note An embryonic structure originating from the ALLANTOIS. It is a canal connecting the fetal URINARY BLADDER and the UMBILICUS. It is normally converted into a fibrous cord postnatally. When the canal fails to be filled and remains open (patent urachus), urine leaks through the umbilicus.
Preferred term Urachus



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