Pain receptor — Free Physiology Illustration | GPAI | GPAI

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Pain receptor — Free Physiology Illustration | GPAI | GPAI

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Pain receptor

Pain receptor

Physiology

Pain receptor

A simple free nerve ending representing a cutaneous pain receptor: a thin pale yellow sensory nerve fiber extending into tissue and branching into a delicate irregular terminal arbor of multiple fine, bare, unmyelinated tapered tips. The ending is unencapsulated, with no specialized end organ or capsule, and appears as a lightly embedded branching sensory filament structure.

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