Respiratory System Functions Quiz
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Questions and Answers

What is the function of alveoli in the respiratory system?

  • Generating sound waves for speaking
  • Producing mucus to filter air
  • Transporting oxygen into the bloodstream (correct)
  • Providing support to the trachea
  • Which organ is directly responsible for pulling in air and pushing it out during breathing?

  • Ribs
  • Bronchial tubes
  • Trachea
  • Diaphragm (correct)
  • What is the primary function of cilia in the respiratory system?

  • Generate heat to warm inhaled air
  • Act as a barrier to prevent foreign particles from entering the lungs (correct)
  • Convert carbon dioxide to oxygen
  • Produce saliva for digestion
  • Which phase of respiration involves air leaving the lungs?

    <p>Expiration</p> Signup and view all the answers

    What function does the epiglottis serve in the respiratory system?

    <p>Closing when swallowing to protect the airway</p> Signup and view all the answers

    What is the primary function of the respiratory system?

    <p>To obtain oxygen for body cells and eliminate carbon dioxide</p> Signup and view all the answers

    Which of the following is NOT a part of the respiratory system's airways?

    <p>Esophagus</p> Signup and view all the answers

    What is the primary role of the sinuses in the respiratory system?

    <p>To regulate the temperature and humidity of inhaled air</p> Signup and view all the answers

    Which of the following is NOT a function of the respiratory system?

    <p>Producing digestive enzymes for breaking down food</p> Signup and view all the answers

    What is the role of the pharynx (throat) in the respiratory system?

    <p>To deliver air from the mouth and nose to the trachea</p> Signup and view all the answers

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