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← Human Body & HealthIf a patient experiences chronic pain due to peripheral nerve damage, what distinguishes descending modulation from other pain relief mechanisms?
A)Blocks substance P release directly
B)Increases local nociceptor sensitization
C)Releases endorphins centrally to inhibit pain✓
D)Reduces inflammation at the injury site
💡 Explanation
Descending modulation involves the brainstem releasing endorphins, which bind to receptors in the spinal cord, therefore inhibiting ascending pain signals; because it centrally acts on the pain pathway, rather than acting locally at the site of injury like inflammation reduction or directly blocking substance P release.
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