| 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: | epithelium |
|---|---|
| Synonyms: | |
| Definition: | Portion of tissue, that consists of one or more layers of epithelial cells connected to each other by cell junctions and which is underlain by a basal lamina. |
| Ontology: | Anatomy Ontology [ZFA:0001486] |