KROK 1 2013 – Question 193 · KROK (Medicine) · Physiology
Analysis of the experimental spirogram of a 55-year-old person revealed a decrease in tidal volume and respiratory amplitude compared to the situation of ten years ago. The change in these indicators is caused by:
- A. Gas composition of the air
- B. Body mass of a person
- C. Physical build of a person
- D. Height of a person
- E. Decreased force of respiratory muscle contraction
Hint
The same individual is compared with a recording made ten years earlier, so think about what changes with ageing and limits how far the chest can expand in quiet breathing.
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