Place the following layers of the meninges and associated spaces in order from superficial to deep: dura mater, subarachnoid space, arachnoid mater, pia mater.

• A. Dura mater → subarachnoid space → arachnoid mater → pia mater
• B. Pia mater → subarachnoid space → arachnoid mater → dura mater
• C. Dura mater → arachnoid mater → subarachnoid space → pia mater
• D. Arachnoid mater → dura mater → subarachnoid space → pia mater

Answer: (C)

Verified step by step guidance

1. Step 1: Begin by understanding the meninges, which are protective layers surrounding the brain and spinal cord. These layers include the dura mater, arachnoid mater, and pia mater, along with associated spaces such as the subarachnoid space.
2. Step 2: Recall the anatomical arrangement of the meninges from superficial (closest to the skull) to deep (closest to the brain). The dura mater is the outermost layer, followed by the arachnoid mater, then the subarachnoid space, and finally the pia mater, which is directly adhered to the brain and spinal cord.
3. Step 3: Note that the subarachnoid space is located between the arachnoid mater and pia mater. It contains cerebrospinal fluid (CSF), which cushions and protects the brain and spinal cord.
4. Step 4: Compare the given options to the correct anatomical order: Dura mater → arachnoid mater → subarachnoid space → pia mater. This sequence matches the correct arrangement of the meninges and associated spaces from superficial to deep.
5. Step 5: Conclude that the correct answer is based on the anatomical hierarchy of the meninges and spaces, ensuring you understand the spatial relationships and functions of each layer.