Answers Kim - Essentials of Healthcare B - ACTIVE Cumulative Exam — Cumulative examQuestion 29

29

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Cumulative Exam — Cumulative exam

Question 29 • Kim - Essentials of Healthcare B - ACTIVE

What is the main function of the respiratory system?

Answer

A

to circulate blood throughout the body by means of oxygenated air

B

to manage the intake of oxygen and the output of carbon dioxide

C

to make sure that air, rather than food, gets propelled through the airways

D

to allow room for air to push through into the lung cavity

Explanation

The respiratory system brings oxygen into the body and removes carbon dioxide when you breathe out. This gas exchange happens in the lungs. Choice B, “to manage the intake of oxygen and the output of carbon dioxide,” describes its main function; circulating blood is mainly the circulatory system’s job.

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