KROK 1 2012 – Question 28 · KROK (Medicine) · Physiology

After a long training session a sportsman has developed fatigue accompanied by abrupt performance decrement. What link of the reflex arch was the fatigue initiated in?

  1. A. Efferent conductor
  2. B. Afferent conductor
  3. C. Muscles
  4. D. Nerve centres
  5. E. Receptors
Hint

Compare the links of the reflex arc by how quickly each one tires with sustained activity, and ask which depends most on chemical transmitters and energy supply.

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