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: | apical side |
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Synonyms: | apical |
Definition: | Anatomical side that is located on the apical end of an organism or structure. |
Ontology: | Spatial Ontology [BSPO:0000057] |