HomeworkQuestionsWeek4_11_

HomeworkQuestionsWeek4_11_ - Study Questions Week 4 1 What...

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Study Questions - Week 4 1. What are the three processes described in the Hodgkin-Huxley mathematical equations? Explain how they contribute to the action potential. 2. Explain what is happening when the membrane reaches threshold for an action potential. 3. What processes contribute to the “absolute” refractory period and the “relative” refractory period. 4. Explain the differences between ionic current, gating current, and capacitive current, all of which flow during the action potential. 5. Assume you are injecting a subthreshold depolarizing current step into a neuron. Draw the corresponding membrane voltage response; be sure to indicate the shape of the voltage change. Compute the membrane time constant if the input resistance R = 100 MOhm and capacitance = 100 pF). Compare this time-course to the rising phase of an action potential. Explain the difference. 6. What is the term “n” in the following equation? g K =g K(max) * n 4 . What is the assumption
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This note was uploaded on 01/31/2011 for the course CBNS 120 taught by Professor Adams during the Winter '10 term at UC Riverside.

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HomeworkQuestionsWeek4_11_ - Study Questions Week 4 1 What...

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