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11 Cards in this Set
- Front
- Back
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Paresthesia defin and ex. |
Paresthesia is an abnormal sensation in the absence of nociceptor stimuation: Tingling/prickling Dysfunction of neurons |
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Dysesthesia defin. and name the two types |
unpleasant, abnormal sensation
Allodynia- pain evoked by a stimulus that would not normally cause pain-touch to sunburn Hyperalgesia- decreased pain threshold, increased pain to suprathreshold stimuli or spontaneous pain |
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What is sensory Ataxi? What causes sensory ataxi? And how do people accommodate? |
Incoordination not due to weakness. Lesion in peripheral sensory nerves, dorsal roots, dorsal column or medial lemnisic Loss of sensation affects proprioception. Accommodate by using vision (Romberg test) |
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Peripheral nerve lesion are generally termed _________. Sensory loss proceeds in the following order (after damage to nerve. - - - - - Return in ______ order. |
Peripheral nerve lesion are generally termed neurophathy. Sensory loss proceeds in the following order; -Conscious proprioception and discriminative touch -Cold -Fast pain -Heat -Slow pain Returns in reverse order. |
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Pain used what theory explain. ________ vs. ____ receptors converge on the same 2nd order neuron. Similar to ________ theory. Substance p is the neurtransmitter involved in pain pathwasy and _______ block substance P.
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Original gate theory- large fiber are able to override smaller fiber. Mechano vs. noci recetors converge on same 2nd order neuron. Similar to counterirritant theory. Mechanoreceptors simulates an internueron to release enkephalin to block noci receptor pathways. |
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Pain. Pain signals can be ________, _________ or ______ in the dorsal horn. |
Pain. Pain signal can be supressed, hypersensitive or reorganized in the dorsal horn. |
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Contempory pain theory. Name three parts and explain. |
Sensory-discriminative- site, timing and intesity of pain (spinothalamic) Motivational-affective- emotional/behavioral response to pain (spinolimbic) Cognitive-evaluative-ability to focus/ignore pain based on cortical control.
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Antinociception |
is suppression of pain in response to stimulas that normally would be painful |
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Antinociciption
Opiates are? |
block pain signal and have specfic binding receptors |
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Stimulation in the brain may produce ______ control of pain via what two things. ________ produce stress-induced pain relief. |
Stimulation in the brain may produce descending control of pain via: -Release of serotonin which stimulates release of enkephalin -norepinephrine binding at primary pain afferent site B-endorphins produce stree induced pain relief |
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The transmission of nociceptive info. can be altered at several location in the nervous system. The phenomenon of antinocicetion is summerize by 5 level. Decribes the levels. |
Level 1: Periphery-non-narcotic analgesic decrease protanglandins-----decrease inflammation-----decrease pain. Level 2: Dorsal horn processing: enkephalin release. Counterirritant/TENS Level 3- Descending control---serotonin from brain----enkephalin release Level 4- Hormonal system- B-endorphins released from stimulation of pituitary Level 5- Cortical level- excitement distraction, placebo effect. Stimulation of same area in brain activated by opiate drugs. |
