Generation
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 is the definition of Threshold Stimulation? | the minimum DEPOLARIZATION required to trigger a Na+ permeability change --> AP
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What is the definitions of Subthreshold? | Insufficient DEPOLARIAZATION for a response
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T/F The lower the amplitude of an AP the less likely it is to reach the synapse. | F. All-or-None Principle - AP attains FULL amplitude (30mv at 1ms) or it does not occur
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What is Hyperpolarization? | MORE negative RP --> decreased membrane excitability
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What are some of the causes of Hyperpolarization? | 1. INTERFERENCE with Na+ INFLUX; 2. INCREASED Extracellular Ca++
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What medicine causes Hyperpolarization and what is its function? | Lidocaine - interference with Na+ INFLUX - anesthesia
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What is Depolarization? | LESS negative RP --> INCREASED membrane Excitability
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What are some causes of Depolarization? | 1. ENHANCEMENT of Na+ INFLUX; 2. DECREASED Extracellular Ca++
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What is Paresthesia? | Increased membrane permeability
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What is a side effect of Paresthesia? | Abnormal Sensation, Hallucination, Hearing Things, Schizo
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Created by:
Kristel
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