Which of the following statements best describes the arachnoid mater?
A)It is the innermost meningeal layer.
B)It is a delicate, richly vascularized meningeal layer that is cobwebby in appearance.
C) It is a tough, inelastic membrane that covers the central nervous system.
D) It is involved with the formation of cerebrospinal fluid.

Question

Quizplus · Accepted Answer

The arachnoid mater is a delicate, cobwebby meningeal layer that lies between the dura mater and the pia mater. It is not the innermost layer (A), nor is it a tough, inelastic membrane (C). While the arachnoid mater is involved with cerebrospinal fluid (CSF) dynamics, it does not directly form CSF (D).

Which of the Following Statements Best Describes the Arachnoid Mater