KROK 1 2017 – Question 153 · KROK (Medicine) · Physiology
Cell membrane rest potential changed from -85 to -90 mV. It can be caused by activation of the following cell membrane channels:
- A. Potassium and calcium
- B. Potassium
- C. Sodium
- D. Calcium
- E. Potassium and sodium
Hint
Decide whether the change in potential is depolarization or hyperpolarization, then ask which ion movement across the membrane would produce it.
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