ANATOMY

Detailed explanation-1: -The fluid that flows in and around the hollow spaces of the brain and spinal cord, and between two of the meninges (the thin layers of tissue that cover and protect the brain and spinal cord).

Detailed explanation-2: -Between the skull and brain is the meninges, which consist of three layers of tissue that cover and protect the brain and spinal cord. From the outermost layer inward they are: the dura mater, arachnoid and pia mater.

Detailed explanation-3: -Brain ventricles Your brain floats in a bath of cerebrospinal fluid. This fluid also fills large open structures, called ventricles, which lie deep inside your brain. The fluid-filled ventricles help keep the brain buoyant and cushioned.

Detailed explanation-4: -Cerebrospinal fluid (CSF) is a watery liquid that continually circulates through the brain’s ventricles (hollow cavities) and around the surface of the brain and spinal cord. CSF washes out impurities from the brain, transfers nutrients and provides protective cushioning to the brain and spinal cord.