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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 corticospinal tract morphology
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Accession:MP:0002878 term browser browse the term
Definition:any structural anomaly of the corticospinal fibers that arise from the pyramidal cells within the cerebral cortex layer V of the precentral motor area, the premotor area and the postcentral gyrus, then descend into and through the medulla to form the lateral corticospinal tract and the anterior corticospinal tract
Synonyms:exact_synonym: abnormal pyramidal tract morphology

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  mammalian phenotype 5402
    nervous system phenotype 369
      abnormal nervous system morphology 215
        abnormal nervous system tract morphology 8
          abnormal corticospinal tract morphology 0
            decreased corticospinal tract size 0
            increased corticospinal tract size 0
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