The brain and spinal cord are enclosed by three protective membranes called the:
A) meninges.
B) pia mater.
C) arachnoid.
D) subarachnoid layer.

Question

Quizplus · Accepted Answer

The meninges are three protective membranes that enclose the brain and spinal cord. The pia mater is the innermost layer, the arachnoid is the middle layer, and the dura mater is the outermost layer. The subarachnoid layer is the space between the arachnoid and pia mater.

The Brain and Spinal Cord Are Enclosed by Three Protective