One of the interconnected cavities in the vertebrate brain that is filled with cerebrospinal fluid that circulates through the cavities. There is a pair in the cerebral cortex (lateral ventricles), one in the rest of the forebrain, and another in the medulla.
See Cerebral spinal fluid (CSF), Dandy Walker malformation, Limbic system, Locus coeruleus (or ceruleus), Medulloblastoma, Metencephalon, Neuronal migration disorders, Oligodendrocytes, Periventricular leucomalacia (PVL), Radial glial cells