KROK 1 2013 – Question 150 · 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. Ca²⁺
- C. Ca²⁺ and Cl⁻
- D. K⁺ and Cl⁻
- E. K⁺ and Na⁺
Hint
Conduction speed depends on the strength of the local currents that depolarise the next segment, so think about which ion gradient drives the inward current of the action potential.
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