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What is the pathway taken by air in the respiratory system? Illustrate with a labelled diagram.(AS5)
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Answer. Air enters the nostrils passes through the nasopharynx, the oral pharynx through the glottis into the trachea into the right and left bronchi, which branches and rebranches into bronchioles, each of which terminates in a cluster of alveoli Only in the alveoli does actual gas exchange takes place
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