Reception, Propagation
Quiz yourself by thinking what should be in
each of the black spaces below before clicking
on it to display the answer.
Help!
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| What are the 2 types of Pain Receptors? | Mecanothermal, Chemosensitive Nociceptors
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| What triggers a Mechanothermal Nociceptor response? | Intense/Severe MECHANICAL stimuli, TEMPERATURE extremes
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| What is an example of a Mecanothermal Nociceptor Stimulus? | Pinch
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| What triggers a Chemosensitive Nociceptor response? | Major Truama --> releases Bradykinin, Histamine, Prostaglandins from injured cells
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| What is an example of a Chemosensitive Nociceptor Stimulus? | major Infection, Disease, severe Burns - Cell Death
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| Why do 3rd degree burns have less pain that 1st or 2nd degree burns? | deep tissue burns damage Chemosensitive Nociceptors
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| Were do A-fibers come from? | from Mechanothermal Nociceptors
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| What are 3 characteristics of A-fibers? | 1. THICK well-myelinated; 2. FAST conduction velocity; 3. 1st PAIN
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| Describe 1st Pain. | Short, Sharp, Stinging, Well-Localized
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| Where does 1st pain occur? | propagated from SKIN only
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| What are 3 characteristics of C-fibers? | 1. THIN poorly-myelinated; 2. SLOW conduction velocity; 3. 2nd PAIN
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| Describe 2nd Pain. | Long-Lasting, Burning
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| Where does 2nd Pain occur? | propagated from Skin, Deep Tissues, Organs
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| What is the significance of A-fibers? | responds to lower levels of injury - Early Warning, take evasive action
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| Wat is the significance of C-fibers? | incapacitating pain - prevents further injury
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Created by:
Kristel
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