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MAMMALIAN PHENOTYPE - ANNOTATIONS

The Mouse Adult Gross Anatomy Ontology and Mammalian Phenotype Ontology are downloaded weekly from the Mouse Genome Informatics databases at Jackson Laboratories (ftp://ftp.informatics.jax.org/pub/reports/index.html). For more information about these ontologies, see the MGI Publications Page at http://www.informatics.jax.org/mgihome/other/publications.shtml.
Term:abnormal first pharyngeal pouch morphology
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Accession:MP:0013222 term browser browse the term
Definition:any structural anomaly of the first endodermal branchial pouch located between the first and second branchial arches; in mammals, the first pouch elongates to form a diverticulum known as the tubotympanic recess; the distal portion of this recess expands to reach the first branchial groove and form the middle ear cavity (aka tympanic cavity) and mastoid antrum; its proximal part remains tubular and forms the auditory tube (aka Eustachian or pharyngotympanic tube), which forms a communication between the nasopharynx and tympanic cavity
Synonyms:exact_synonym: abnormal 1st branchial pouch morphology;   abnormal 1st pharyngeal pouch morphology;   abnormal first branchial pouch morphology


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  mammalian phenotype 5422
    embryo phenotype 12
      abnormal embryo morphology 2
        abnormal embryonic tissue morphology 1
          abnormal pharyngeal pouch morphology 0
            abnormal first pharyngeal pouch morphology 0
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