]> 2013-05-23T01:16:12-07:00 Fourth ventricle 2006-07-15T00:00:00 uncurated 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. birnlex_1256 Fourth ventricle 2012-03-29T00:00:00 Regional part of brain 4th ventricle Choroid plexus of fourth ventricle Hindbrain of WHS11 Fourth ventricle of WHS11 PartiallyOverlapsWith Regional part of brain Synonym SuperCategory Mammal Species ModifiedDate Label Hindbrain Cerebral ventricular cavity Is part of Id Definition CurationStatus Created