This is a potentially lethal condition in which there is inflammation of the meninges. 

Common symptoms include: 
- headache
- fever
- stiff neck 

Meningitis

This is a type of tumor that forms in the meninges and is usually benign, or noncancerous, but can be dangerous as it crowds the intracranial space. 

Meningioma

Ohio State University, Columbus

The brain and spinarl cord are encased in membranes called the meninges. The dura mater is a tough outer part, the arachnoid is a webby substance that suspends the brain in cerebrospinal fluids, and the pia mater is the delicate membrane that adheres to the surface of the brain.

Protective membranes of the brain

Breedlove, S. & Watson, N. (2017). Behavioral neuroscience, eighth edition. Oxford University Press.

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