Term: third ventricle anatomical region
Name: third ventricle
Synonyms: 3rd ventricle, diencephalic ventricle, diencephalic vesicle, ventriculus diencephali
Definition: Fluid-filled brain cavity.
Ontology: Anatomy Ontology [ZFA:0000161]

Name: anatomical region
Synonyms:
Definition: A 3D region in space without well-defined compartmental boundaries; for example, the dorsal region of an ectoderm.
Ontology: Spatial Ontology [BSPO:0000070]