The structures that are involved in the air distribution function of the respiratory system are: d. both a and c above.
Air distribution can be defined as the movement and flow of atmospheric air (oxygen) from one point of the body of a living organism to another.
In this context, the structures that are involved in the air distribution function of the respiratory system include:
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Complete Question:
Which of the following structures is involved in the air distribution function of the respiratory system?
a. trachea
b. alveoli
c. bronchi
d. both a and c above.