alleryThe conducting part of the respiratory system runs from the external nostrils up to the:
AThe alveolar sacs
BTerminal bronchioles
CThe alveolar ducts
DRespiratory bronchioles
Answer & Solution
Correct answer: B. Terminal bronchioles
Everything from the nostrils to the terminal bronchioles only conducts air, while alveoli and their ducts do the exchange.
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