Arachnoid mater — Free Anatomy Illustration | GPAI | GPAI

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Arachnoid mater — Free Anatomy Illustration | GPAI | GPAI

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Arachnoid mater

Arachnoid mater

Anatomy

Arachnoid mater

Thin translucent arachnoid meningeal membrane shown as a delicate pale whitish to gray-white semi-transparent film. It has a smooth sheet-like contour spanning over underlying surface contours rather than dipping deeply into folds, and appears slightly separated from the surface. Fine subtle trabecular strands and a spiderweb-like texture give it a wispy web-like quality. The membrane is more delicate than dura mater, smoother than pia mater, and lacks visible blood vessels.

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