KROK 1 2014 – Question 140 · KROK (Medicine) · Physiology
In course of an experiment there has been an increase in the nerve conduction velocity. This may be caused by an increase in the concentration of the following ions that are present in the solution around the cell:
- A. Na⁺
- B. K⁺ and Na⁺
- C. Ca²⁺ and Cl⁻
- D. Ca²⁺
- E. K⁺ and Cl⁻
Hint
Conduction velocity depends on how large and how fast the depolarising current of the action potential is; ask which ion carries that inward current and how its external concentration changes it.
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