MECHANISMS OF PAIN Pain Neuropathic Burning, shooting, gnawing, aching, lancinating Mixed Nociceptive/Neuropathic Nociceptive Tissue Damage Somatic Visceral(From organ/cavity lining) Poorly localized, crampy, diffuse, deep sensation Central Nervous System Peripheral Nervous System Post-Herpetic Neuralgia Neuroma Neuropathy Deep Less well-localized, dull, longer duration Superficial Well-localized, sharp, short duration Deafferentation Loss of sensory input Sympathetic Complex regional pain syndrome Phantom Limb Post-stroke Spinal injury

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