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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:abnormal pharyngeal pouch morphology
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Accession:MP:0006031 term browser browse the term
Definition:any structural anomaly of the balloonlike diverticulae of the embryonic pharyngeal endoderm that line the inside of the branchial arches; these paired endodermal evaginations develop in a craniocaudal sequence between the branchial arches, e.g. pouch 1 lies between arches 1 and 2; in mammals, there are four well-developed pairs of pouches (the fifth and sixth pair is vestigial or absent); the pouch endoderm reaches the branchial groove ectoderm to form the double-layer branchial membranes that separate them
Synonyms:exact_synonym: abnormal branchial pouch morphology;   abnormal endodermal pouch morphology

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  mammalian phenotype 5407
    embryo phenotype 6
      abnormal embryo morphology 2
        abnormal embryonic tissue morphology 1
          abnormal pharyngeal pouch morphology 0
            abnormal first pharyngeal pouch morphology 0
            abnormal fourth pharyngeal pouch morphology + 0
            abnormal second pharyngeal pouch morphology + 0
            abnormal third pharyngeal pouch morphology + 0
            abnormal ultimobranchial body morphology + 0
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