KROK 1 2014 – Question 78 · KROK (Medicine) · Physiology
When measuring total muscle action potential it was revealed that it was subject to the power-law relationship. The reason for this is that individual muscle fibers differ in:
- A. Resting potential
- B. Conduction velocity
- C. Depolarization threshold
- D. Critical level of depolarization
- E. Diameter
Hint
Consider why increasing stimulus strength recruits more and more fibers of the same muscle, and which membrane property must vary from fiber to fiber for that to happen.
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