Which of the following is the innermost membrane covering the brain?
Piamater
The human brain is well protected by the skull. Inside the skull, the brain is covered by cranial meninges consisting of 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. Pia mater often referred to as simply the pia, is the delicate innermost layer of the meninges.