meninges
n. The three membrane layers which cover the brain and spinal column consisting of a fibrous outer dura mater, a middle layer called the arachnoid membrane, and the thin and transparent inner layer called the pia mater.
n. The three membrane layers which cover the brain and spinal column consisting of a fibrous outer dura mater, a middle layer called the arachnoid membrane, and the thin and transparent inner layer called the pia mater.
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