WHAT IS MENINGES ?

You friend is absolutely right, although I would like to add few points in the answe

The human brain is well protected by the skull. Inside the skull, the brain is covered by cranial meninges. Meninges consist of 3 layers-an outer layer called dura mater, a very thin middle layer called arachnoid and an inner layer (which is in contact with the brain tissue) called pia mater.

@Shruti:- Good answer, keep posting!!