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Question
How does the total cross-sectional area of the tracheobrochial tree change from the trachea to the respiratory zone?a. It increases steadily to the terminal bronchioles then increases significantly in the respiratory zone
b. It decreases slightly to the terminal bronchioles then decreases significantly
c. It remains steady throughout the tracheobronchial tree
d. It increases steadily through the lobar bronchi then increases significantly through the remaining airway generations
Answer
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