Fourth ventricle
System
Nervous
SNOMED CT
180932000
Fourth ventricle
Definition
Part of the ventricular system of the brain, forming a single large irregularly shaped cavity located on the midline of the rhombencephalon, between the medulla, pons and the isthmus ventrally and the cerebellum dorsally. It is continuous with the cerebral aqueduct anteriorally and the central canal of the spinal cord posteriorly. It communicates with the subarachnoid space through its lateral and median apertures.
Also known as ventricle IV — per UBERON
The Fourth ventricle is a part of the Nervous.