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Title: I have a class physiology disscusion question with membrane potential. please.. Post by: jdizzle15 on Sep 28, 2014 Membrane Potential to answer the following question.
Hyperkalemia (elevated extracellular potassium) can occur as the body attempts to counteract a decrease in blood pH (acidosis). If this occurs, extracellular potassium may increase from 5 mM to 10 mM while intracellular levels remain at 150 mM. ~(a) Would this cause a neuron to become depolarized or hyperpolarized? EXPLAIN your reasoning. ~(b) Given your answer to part “a”, is the cell’s activity depressed or hyperexcitable? EXPLAIN your reasoning. ~(c) Predict the effects of hyperkalemia on other excitable tissues such as the muscle and heart. EXPLAIN your predictions. i know this is alot to answer, but any little bit helps. thanks in advance. Title: Re: I have a class physiology disscusion question with membrane potential. please.. Post by: hrankow on Sep 29, 2014 My guess is that it would cause the neuron to be depolarized. It would then cause the cell to be depressed.
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