Phenotype: midbrain hypoplastic, abnormal
Note: This statement combines anatomy and/or ontology terms with phenotype quality terms to create a complete phenotype (EQ) statement. For detailed information on individual terms, click the hyperlinked term name.
Name: midbrain
Synonyms: mesencephalon
Definition: The brain region between the forebrain anteriorly and the hindbrain posteriorly, including the tectum dorsally and the midbrain tegmentum ventrally.
Ontology: Anatomy Ontology [ZFA:0000128]
Name: hypoplastic
Synonyms: hypoplasia, underdeveloped
Definition: A physical quality inhering in an organ or tissue by virtue of the bearer's exhibiting a decreased number of cells, typically associated with a decrease in size.
Ontology: Phenotypic Quality Ontology [PATO:0000645]