Which layer is the web-like middle protective covering?

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Multiple Choice

Which layer is the web-like middle protective covering?

Explanation:
The web-like middle protective covering is the arachnoid mater. It sits between the outer dura mater and the inner pia mater and gets its name from its spider-web–like appearance, formed by delicate trabeculae that create the subarachnoid space filled with cerebrospinal fluid and blood vessels. This structure provides cushioning and a pathway for CSF circulation. In contrast, the dura mater is the tough outer layer, the pia mater is the thin inner layer that tightly covers the brain, and the term meninges refers to the trio of membranes as a whole.

The web-like middle protective covering is the arachnoid mater. It sits between the outer dura mater and the inner pia mater and gets its name from its spider-web–like appearance, formed by delicate trabeculae that create the subarachnoid space filled with cerebrospinal fluid and blood vessels. This structure provides cushioning and a pathway for CSF circulation. In contrast, the dura mater is the tough outer layer, the pia mater is the thin inner layer that tightly covers the brain, and the term meninges refers to the trio of membranes as a whole.

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