1. Ventricles are the cavities present in different parts of the brain.
2. There are four ventricles in the human brain. All the ventricles are connected with each other.
3. They are filled with cerebrospinal fluid.
4. Paracoel or lateral ventricles-I and-II are present inside the cerebral hemispheres.
5. The diencephalon has ventricle-III.
6. Ventricle-III is in connection with lateral ventricles by foramen of Monro.
