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The Mouse Adult Gross Anatomy Ontology and Mammalian Phenotype Ontology are downloaded weekly from the Mouse Genome Informatics databases at Jackson Laboratories ( For more information about these ontologies, see the MGI Publications Page at

Term:persistent cloaca
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Accession:MP:0003129 term browser browse the term
Definition:persistence of an early embryonic state in which the urinary, genital, and gastrointestinal tracts remain confluent and communicate with the exterior through a single perineal opening; due to failure of the urogenital septum to divide the embryonic cloaca into rectal and urogenital portions
Comment:Note that the term "urogenital sinus" may refer to the primitive urogenital sinus present as a transient developmental structure in most mammals or it may refer to a condition in which an unseptated cloaca persists in animals longer than normal.
Synonyms:exact_synonym: cloacogenic bladder;   congenital cloaca
 related_synonym: urogenital sinus

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Path 1
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  mammalian phenotype 5417
    renal/urinary system phenotype 649
      abnormal renal/urinary system morphology 279
        persistent cloaca 0
Path 2
Term Annotations click to browse term
  mammalian phenotype 5417
    digestive/alimentary phenotype 81
      abnormal digestive system morphology 58
        abnormal digestive system development 0
          persistent cloaca 0
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