The most common form of dementia, generally diagnosed in indiviuals over 65. The symptoms include: memory loss, confusion, and mood swings.

(Arachnoid membrane) Lies superficial to the subarachnoid space. The middle layer of the meninges. Connected to the Dura mater, forming a web like structure (hence arachnoid). Unlike the pia mater...

The arachnoid villi also known as arachnoid granulations are protrusions of the arachnoid membrane into the dura mater. The prtrusions lie next to the venous sinuses of the dura, and allow...

  Measures the density of a liquid in comparison to cerebrospinal fluid, used in anesthesia to determine how quickly a drug will diffuse through the CNS.

A protein used as an indicator of a biological state. Used to measure and evaluate normal biological processes, pathogenic processes, or pharmacologic responses to therapy.