HESI A2 Practice Test & Study Guide

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Respiratory System HESI A2 Practice Questions

Free Respiratory System practice questions for the HESI A2 exam with detailed rationales.

Question 1 of 2

What happens when the diaphragm contracts?

The chest cavity expands, causing inhalation.

Oxygen is exchanged for carbon dioxide in the alveoli.

The epiglottis closes to prevent food from entering the trachea.

The lungs deflate and air is forced out.

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