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NREMT Advanced EMT

Category - Airway and Respiration

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What is the dome-shaped muscle that causes the lungs to inflate during inhalation?

Maxilla
Diaphragm
Aorta
Alveolus
Vena cava

Explanation

Answer - B - The diaphragm is the dome-shaped muscle that causes the lungs to inflate by moving downward and creating negative pressure in the lungs. As the diaphragm relaxes, it rises and air is exhaled.

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