Chapter 11 Definitions

Chapter 11 Definitions - CHAPTER 11 - PAIN 1. 2. 3. 4. 5....

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CHAPTER 11 - PAIN 1. AFFERENT (SENSORY) NEURONS – NERVE CELLS THAT CONDUCT IMPULSES FROM A SENSE ORGAN TO THE CENTRAL NERVOUS SYSTEM, OR FROM LOWER TO HIGHER LEVELS IN THE SPINAL CORD AND BRAIN. 2. NOCICEPTORS – THE AFFERENT NERVE ENDINGS THAT RESPOND TO PAIN STIMULI. 3. A-DELTA FIBRES – THE AFFERENT PERIPHERAL FIBRES THAT ARE ASSOCIATED WITH TRANSMITTING SHARP, DISTINCT PAIN. 4. C-FIBRES – THE AFFEENT PERIPHERAL FIBRES THAT ARE ASSOCIATED WITH TRANSMITTING DIFFUSE, DULL, OR ACHING PAIN. 5. GATE CONTROL THEORY – A THEORY THAT SUGGESTS THAT A NEURAL MECHANISM IN THE DORSAL HORNS OF THE SPINAL CORD ACTS LIKE A GATE THAT CAN INCREASE OR DECREASE THE FLOW OF NERVE IMPULSES FROM PERIPHERAL FIBRES TO THE CENTRAL NERVOUS SYSTEM THEREBY INFLUENCING THE SENSATION OF PAIN. 6. CENTRAL CONTROL TRIGGER – IN THE GATE CONTROL THEORY OF PAIN, A SPECIALIZED SYSTEM OF LARGE-DIAMETER, RAPIDLY CONDUCTING FIBRES THAT ACTIVATE SELECTIVE COGNITIVE PROCESSES THAT THEN INFLUENCE, BY WAY OF DESCENDING FIBRES, THE OPENING AND CLOSING OF THE GATE. 7. PHANTOM LIMB PAIN – THE EXPERIENCE OF PAIN IN AN ABSENT BODY PART. 8. NEUROMATRIX THEORY – AN EXTENSION TO THE GATE CONTROL THEORY, WITH GREATER EMPHASIS PLACED ON THE BRAIN’S ROLE IN PAIN PERCEPTION. 9. PERIAQUEDUCTAL GREY AREA – AN AREA OF THE MIDBRAINTHAT IS INVOLVED IN PAIN RECEPTION. 10. STIMULATION-PRODUCED ANALGESIA (SPA) – FREEDOM FROM PAIN AS A RESULT OF ELECTRICAL STIMULATION. 11.
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This note was uploaded on 12/19/2010 for the course PSYC 2323 taught by Professor Ruthkirson during the Spring '10 term at Langara.

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Chapter 11 Definitions - CHAPTER 11 - PAIN 1. 2. 3. 4. 5....

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