NREMT Paramedic

Category - Medical

All of the following are part of the respiratory system except one. Which of the following is not part of the respiratory system?
  1. Nose
  2. Trachea
  3. Lungs
  4. Esophagus
  5. 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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