are a collection of three separate membranous layers which provide a protective covering for the brain and spinal cord. The three separate layers are three- outer Dura mater, middle arachnoid mater and thin transparent pia mater.
are a collection of three separate membranous layers which provide a protective covering for the brain and spinal cord. The three separate layers are three- outer Dura mater, middle arachnoid mater and thin transparent pia mater.