Term: fourth ventricle ventricular zone
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: ventricular zone
Synonyms: ventricular zones
Definition: Proliferative region that is part of the ventricular system. The cells directly face the ventricle.
Ontology: Anatomy Ontology [ZFA:0001083]