Periaqueductal gray — Free Physiology Illustration | GPAI | GPAI

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Periaqueductal gray — Free Physiology Illustration | GPAI | GPAI

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Periaqueductal gray

Periaqueductal gray

Physiology

Periaqueductal gray

Cross-sectional view of the periaqueductal gray as a ring-like to slightly crescent-shaped sleeve of medium gray to muted gray-pink neural tissue surrounding a small narrow central canal. The tissue has soft circular to oval anatomical contours, generally uniform thickness, slightly irregular neural borders, and subtle internal texture, with a hollow circular center representing the canal.

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