Phenotype: fourth ventricle opaque, 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: fourth ventricle
Synonyms: 4th ventricle, hindbrain ventricle, rhombencephalic ventricle, rhombencephalic vesicle, ventricle IV, ventriculus rhombencephali
Definition: Fluid-filled brain cavity. Most posterior brain ventricle.
Ontology: Anatomy Ontology [ZFA:0000110]
Name: opaque
Synonyms: clouding, cloudy, non-transparent
Definition: A optical quality inhering in a bearer by virtue of the bearer's not being clear; not transmitting or reflecting light or radiant energy.
Ontology: Phenotypic Quality Ontology [PATO:0000963]