Review Note
Last Update: 08/24/2024 04:05 AM
Current Deck: PHYSIO BLOCK 1
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Front
What effect does an increase in extracellular potassium concentration have on the membrane potential?
- A) It hyperpolarizes the membrane.
- B) It depolarizes the membrane.
- C) It has no effect on the membrane potential.
- D) It makes the membrane potential more negative.
Back
- B) It depolarizes the membrane. (An increase in extracellular potassium concentration reduces the gradient for potassium to leave the cell, causing the membrane potential to become less negative (depolarization)).
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