About   Help   FAQ
Mammalian Phenotype Browser
Term Detail
MP term:dilated fourth ventricle
Synonym: dilated 4th ventricle
Synonym: dilated IVth ventricle
Synonym: dilated rhombencephalic ventricle
Synonym: dilated ventricle of rhombencephalon
Synonym: dilated ventriculus quartus
Synonym: fourth ventricle dilation
MP id: MP:0000829
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
Number of paths to term: 3

is-adenotes an 'is-a' relationship
part-ofdenotes a 'part-of' relationship


mammalian phenotype
        is-anervous system phenotype
                is-aabnormal nervous system morphology
                        is-aabnormal brain morphology
                                is-aabnormal brain ventricular system morphology
                                        is-aabnormal brain ventricle morphology
                                                is-aabnormal fourth ventricle morphology
                                                        is-aabnormal area postrema morphology
                                                        is-aabsent fourth ventricle
                                                        is-adilated fourth ventricle [MP:0000829] (11 genotypes, 11 annotations)
                                                        is-aenlarged fourth ventricle


mammalian phenotype
        is-anervous system phenotype
                is-aabnormal nervous system morphology
                        is-aabnormal brain morphology
                                is-aabnormal brain ventricular system morphology
                                        is-aabnormal brain ventricle morphology
                                                is-adilated brain ventricles
                                                        is-adilated fourth ventricle [MP:0000829] (11 genotypes, 11 annotations)
                                                        is-adilated lateral ventricles
                                                        is-adilated third ventricle


mammalian phenotype
        is-anervous system phenotype
                is-aabnormal nervous system morphology
                        is-aabnormal brain morphology
                                is-aabnormal hindbrain morphology
                                        is-aabnormal fourth ventricle morphology
                                                is-aabnormal area postrema morphology
                                                is-aabsent fourth ventricle
                                                is-adilated fourth ventricle [MP:0000829] (11 genotypes, 11 annotations)
                                                is-aenlarged fourth ventricle

Back to entry page

Contributing Projects:
Mouse Genome Database (MGD), Gene Expression Database (GXD), Mouse Tumor Biology (MTB), Gene Ontology (GO), MouseCyc
Citing These Resources
Funding Information
Warranty Disclaimer & Copyright Notice
Send questions and comments to User Support.
last database update
12/09/2014
MGI 5.20
The Jackson Laboratory