Definitions for "VENTRICLES"
the two lower chamber of the heart
(Cerebral ventricles) A series of fluid-filled spaces inside the brain. The fluid they contain is CEREBRO-SPINAL FLUID (qv). They can be seen on brain images. Enlargements of the ventricles can indicate increased pressure inside the brain or the loss of brain cells.
Within the middle portion of the cerebrum are spaces or cavities called ventricles. These contain cerebrospinal fluid which is the watery, clear fluid that provides a protection from shock or sudden motion to the brain.