Send us a Message

Submit Data |  Help |  Video Tutorials |  News |  Publications |  Download |  REST API |  Citing RGD |  Contact   


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:absent midbrain
go back to main search page
Accession:MP:0012087 term browser browse the term
Definition:absence of the brain region derived from the middle of the three cerebral vesicles of the embryo; this region controls sensory and motor functions in the adult, including eye movement and coordination of auditory and visual reflexes
Synonyms:exact_synonym: absent mesencephalon;   mesencephalon agenesis;   midbrain agenesis;   missing mesencephalon;   missing midbrain

show annotations for term's descendants           Sort by:

Term paths to the root
Path 1
Term Annotations click to browse term
  mammalian phenotype 5368
    nervous system phenotype 360
      abnormal nervous system morphology 208
        abnormal brain morphology 136
          abnormal brainstem morphology 13
            abnormal midbrain morphology 7
              absent midbrain 0
paths to the root