| Phenotype: | fourth ventricle cerebrospinal fluid circulation decreased process quality, abnormal |
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| 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 |
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| 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: | cerebrospinal fluid circulation |
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| Synonyms: | cerebrospinal fluid flow, CSF circulation, CSF flow |
| Definition: | The neurological system process driven by motile cilia on ependymal cells of the brain by which cerebrospinal fluid circulates from the sites of secretion to the sites of absorption. In ventricular cavities, the flow is unidirectional and rostrocaudal, in subarachnoid spaces, the flow is multi-directional. |
| Ontology: | GO: Biological Process [GO:0090660] QuickGO AmiGO |
| Name: | decreased process quality |
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| Synonyms: | |
| Definition: | A quality of a process that has a value that is decreased compared to normal or average. |
| Ontology: | Phenotypic Quality Ontology [PATO:0002302] |