Write a brief account of ventricles in the brain.

Ventricles are the cavities present in different parts of the brain 

There are four ventricles in the human 🧠.  All the ventricles are connected with each other.

They are filled with cerebrospinal fluid.

Paracoel or lateral ventricles -I and -II are present inside the cerebral hemispheres.

The diencephalon has ventricle-III.

Ventricle -III is in connection with lateral ventricles by foramen of Monro.