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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:dilated fourth ventricle
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Accession:MP:0000829 term browser browse the term
Definition:the luminal space of the fourth ventricle is increased in volume or area, usually with an increase in contained fluid, in the irregularly shaped cavity in the rhombencephalon, between the medulla oblongata, the pons, and the isthmus in front, and the cerebellum behind; it is continuous with the central canal of the cord below and with the cerebral aqueduct above, and through its lateral and median apertures it communicates with the subarachnoid space
Synonyms:exact_synonym: 4th ventricle dilation;   IVth ventricle dilation;   dilated 4th ventricle;   dilated 4th ventricles;   dilated IVth ventricle;   dilated IVth ventricles;   dilated fourth ventricles;   dilated rhombencephalic ventricle;   dilated rhombencephalic ventricles;   dilated ventricle of rhombencephalon;   dilated ventriculus quartus;   fourth ventricle dilation;   rhombencephalic ventricle dilation;   ventriculus quartus dilation


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Path 1
Term Annotations click to browse term
  mammalian phenotype 5419
    nervous system phenotype 378
      abnormal nervous system morphology 216
        abnormal brain morphology 140
          abnormal hindbrain morphology 18
            abnormal fourth ventricle morphology 1
              dilated fourth ventricle 0
Path 2
Term Annotations click to browse term
  mammalian phenotype 5419
    nervous system phenotype 378
      abnormal nervous system morphology 216
        abnormal brain morphology 140
          abnormal brain ventricular system morphology 34
            abnormal brain ventricle morphology 31
              abnormal fourth ventricle morphology 1
                dilated fourth ventricle 0
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