Phenotype: fourth ventricle cerebral spinal fluid increased amount, abnormal
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
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: cerebral spinal fluid
Synonyms: CSF
Definition: Portion of organism substance that is a clear fluid that occupies the subarachnoid space and the ventricular system around and inside the brain.
Ontology: Anatomy Ontology [ZFA:0001626]
Name: increased amount
Synonyms: accessory, increased, increased number, present in greater numbers in organism, supernumerary
Definition: An amount which is relatively high.
Ontology: Phenotypic Quality Ontology [PATO:0000470]