Question

question 17
the subarachnoid space is just outside the
arachnoid mater.
pia mater.
neocortex.
central canal.

Explanation:

The subarachnoid space is located between the arachnoid mater and the pia mater. It is just outside the pia mater. The arachnoid mater is the middle - layer of the meninges, and the subarachnoid space contains cerebrospinal fluid. The neocortex is part of the cerebral cortex and the central canal is in the spinal cord.

Answer:

pia mater.