PIAMATER

Pia mater

Pia mater often referred to as simply the pia, is the delicate innermost layer of the meninges, the membranes surrounding the brain and spinal cord. Pia mater is medieval Latin meaning "tender mother." The other two meningeal membranes are the dura mater and the arachnoid mater. Pia mater is a thin fibrous tissue that is impermeable to fluid. This allows the pia mater to enclose cerebrospinal fluid. By containing this fluid the pia mater works with the other meningeal layers to protect and cushion the brain. The pia mater allows blood vessels to pass through and nourish the brain. The perivascular space created between blood vessels and pia mater ...

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pia mater

Noun

  1. The innermost of the meninges, the membranes that surround the brain and spinal cord.


The above text is a snippet from Wiktionary: pia mater
and as such is available under the Creative Commons Attribution/Share-Alike License.

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