KROK 1 2014 – Question 5 · KROK (Medicine) · Physiology
A sportsman spontaneously held breath for 40 seconds, which resulted in an increase in heart rate and systemic arterial pressure. Changes of these indicators are due to activation of the following regulatory mechanisms:
- A. Conditioned sympathetic reflexes
- B. Unconditioned sympathetic reflexes
- C. Unconditioned parasympathetic reflexes
- D. Conditioned parasympathetic reflexes
- E. -
Hint
Think about what stimulus holding the breath creates inside the body, whether any prior learning is needed to respond to it, and which autonomic division mobilises the circulation.
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