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Neuroanatomy of Pain

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Neuroanatomy of Pain

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    1. Neuroanatomy of Pain

    2. Introduction What is pain? An unpleasant sensory and emotional experience associated with actual or potential tissue damage, or described in such terms as tissue damage

    3. Introduction Pain is subjective Does pain have a purpose? Types of Pain Acute Pain Chronic Pain Referred Pain Radiating

    4. Neurophysiology of Pain Afferent Peripheral Receptor Types Special Receptors Visceral Receptors Deep Receptors Superficial Receptors

    5. Afferent Peripheral Receptors Special Transmit taste, sight, smell Visceral Receptors Transmit hunger, distention, nausea Deep Kinesthesia, joint position sense, deep pressure and pain Muscle -- GTOs, muscle spindles Articular Structures fast and slow adapting mechanoreceptor and nociceptors

    6. Afferent Peripheral Receptors Superficial Warm/cold, touch, pressure, itch and pain from skin level 3 categories Mechanorecptors Thermoreceptors Nociceptors

    7. Mechanorecepetors Mechanical stimuli Touch, pressure, stroking

    8. Mechanorecpetors Mechanical stimuli Touch, pressure, stroking Fast-adapting Receptors Pacinian Corpuscles Meissner Corpuscles Respond to pressure and touch very quickly

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