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NREMT EMT

Category - Airway

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All of the following are part of the respiratory system except one. Which of the following is not part of the respiratory system?

Nose
Trachea
Lungs
Esophagus
Mouth

Explanation

Answer: D - All of the structures above are part of the respiratory system except the esophagus, which is the tube that leads to the stomach. A muscular flap of skin directs air from the back of the throat to the lungs and food from the back of the throat to the stomach.

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