AnswersAnatomy Physiology BThe Respiratory System

The Respiratory System Answers

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What is the primary function of the lower respiratory system?

A
to move nutrients to the cells throughout the body
B
to move blood to the cells throughout the body
C
to extract oxygen from the air that the body breathes in
D
to extract oxygen from the blood that the body makes
2
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What do the trachea and the bronchial tubes have in common? Check all that apply.

A
They act as passageways for air.
B
They are lined with epithelial cells.
C
They extract oxygen from the air.
D
They are lined with thin muscles.

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