Practice Quiz

ACSM Personal Trainer

Category - Initial Client Consultation and Assessment

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What controls the resistance to air flow and ventilation of the lungs?
  1. The prevention of over - expansion of the respiratory system
  2. Variation in the diameter of the bronchioles
  3. Variation in the diameter of the lobules
  4. Muscular activation of the diaphragm
Explanation
Answer: B - Variation in the diameter of the bronchioles controls the resistance to air flow and ventilation of the lungs.
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