Which is the outermost layer of the meninges?

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Multiple Choice

Which is the outermost layer of the meninges?

Explanation:
Meninges consist of three layers, and the outermost is the dura mater. It’s a tough, fibrous membrane that forms the protective outer casing around the brain and spinal cord, and in the skull it connects to the periosteum to help anchor the brain. Between the dura and the middle layer is the potential subdural space, highlighting that dura is the outermost barrier. The middle layer is the arachnoid mater, a delicate membrane, and beneath it lies the subarachnoid space containing cerebrospinal fluid. The innermost layer is the pia mater, a thin membrane that closely adheres to the brain and spinal cord. So, the outermost layer is the dura mater.

Meninges consist of three layers, and the outermost is the dura mater. It’s a tough, fibrous membrane that forms the protective outer casing around the brain and spinal cord, and in the skull it connects to the periosteum to help anchor the brain. Between the dura and the middle layer is the potential subdural space, highlighting that dura is the outermost barrier. The middle layer is the arachnoid mater, a delicate membrane, and beneath it lies the subarachnoid space containing cerebrospinal fluid. The innermost layer is the pia mater, a thin membrane that closely adheres to the brain and spinal cord. So, the outermost layer is the dura mater.

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