Cerebral ventricle: One of a system of four communicating cavities within the brain that are continuous with the central canal of the spinal cord. They include two lateral ventricles in the cerebral hemispheres, each consisting of a triangular central body and four horns. The lateral ventricles communicate with the third ventricle through an opening called the interventricular foramen. The third ventricle, a median (midline) cavity in the brain, is bounded by the thalamus and hypothalamus on either side. In front, the third ventricle communicates with the lateral ventricles, and in back it communicates with the aqueduct of the midbrain (also known as the aqueduct of Sylvius). The fourth ventricle, which is the lowest of the four ventricles of the brain, extends from the aqueduct of the midbrain to the central canal of the upper end of the spinal cord, with which it communicates, through the two foramina of Luschka and the foramen of Magendie. The ventricles are filled with cerebrospinal fluid.
Cerebritis: Inflammation of the brain. Cerebritis can be caused by infection or inflammation from disease.
- Cerebrohepatorenal syndrome
Cerebrohepatorenal syndrome: A genetic disorder, which is also called the Zellweger syndrome, characterized by the reduction or absence of peroxisomes (cell structures that rid the body of toxic substances) in the cells of the liver, kidneys, and brain. Zellweger syndrome is one of a group of disorders called the leukodystrophies, all of which affect the […]
- Cerebrospinal fluid
Cerebrospinal fluid: A watery fluid that is continuously produced and absorbed and that flows in the ventricles within the brain and around the surface of the brain and spinal cord. Abbreviated CSF. CSF is produced by the choroid plexus, a series of infolded blood vessels that project into the cerebral ventricles, and it is absorbed […]
Cerebrovascular: Pertaining to the blood vessels and, especially, the arteries that supply the brain. As in cerebrovascular accident or cerebrovascular disease.
- Cerebrovascular accident
The term “stroke” reflects the belief among the ancient Greeks and Romans that someone suffering a stroke (or any sudden incapacity) had been struck down by the gods.