Pain receptor — Free Biology Illustration | GPAI | GPAI

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Pain receptor — Free Biology Illustration | GPAI | GPAI

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Pain receptor

Pain receptor

Biology

Pain receptor

Free nerve ending nociceptor shown as a simple unencapsulated sensory nerve terminal: a thin pale yellow or beige neuronal fiber with a small elongated cell process leading into multiple sparse, delicate, twig-like branches. The terminal tips are bare, exposed, and threadlike, with fine branching free endings; subtle red accent tips may be present. The structure should appear lightweight, branching, and embedded in tissue, without any surrounding capsule.

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