| 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: | structure |
|---|---|
| Synonyms: | conformation, relational structural quality |
| Definition: | A morphology quality inhering in a bearer by virtue of the bearer's relative position, shape, arrangements and connectivity of an organism's various parts; the pattern underlying its form. |
| Ontology: | Phenotypic Quality Ontology [PATO:0000141] |