Question

Which of these does NOT contribute significantly to the protection of the brain?

A. cranium

B. subarachnoid space

C. cerebrospinal fluid (CSF)

D. dura mater

E. cerebral space

Answer 1

The subarachnoid space does not contribute significantly to the protection of the brain.

Step-by-step explanation:

The subarachnoid space does NOT contribute significantly to the protection of the brain. The subarachnoid space is the space between the arachnoid mater and the pia mater, which are two of the three protective layers (meninges) surrounding the brain and spinal cord. While the subarachnoid space contains cerebrospinal fluid (CSF) that acts as a cushion for the brain, it does not provide direct physical protection like the cranium, dura mater, and cerebral space.