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Respiratory System

  1.  
    Which muscle is MOST responsible for helping you breathe in and out?
    A. Trachea B. Nasal Cavity C. Larynx D. Diaphragm
  2.  
    Which structure in the lungs is the main site of gas exchange between the air and the blood?
    A. Bronchi B. Trachea C. Heart D. Alveoli
  3.  
    What is the process of breathing in called?
    A. Inhalation B. Digestion C. Circulation D. Exhalitation
  4.  
    What is the medical term for the voice box which contains vocal cords used for speech?
    A. Pharynx B. Larynx C. Epiglottis D. Trachea
  5.  
    What is the primary function of the respiratory system?
    A. To break down food B. To circulate blood throughout the body C. To produce hormones D. To supply the blood with oxygen and remove carbon dioxide
Answer Key
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Respiratory System (Answer Key)

  1.  
    Which muscle is MOST responsible for helping you breathe in and out?
    A. Trachea B. Nasal Cavity C. Larynx D. Diaphragm
  2.  
    Which structure in the lungs is the main site of gas exchange between the air and the blood?
    A. Bronchi B. Trachea C. Heart D. Alveoli
  3.  
    What is the process of breathing in called?
    A. Inhalation B. Digestion C. Circulation D. Exhalitation
  4.  
    What is the medical term for the voice box which contains vocal cords used for speech?
    A. Pharynx B. Larynx C. Epiglottis D. Trachea
  5.  
    What is the primary function of the respiratory system?
    A. To break down food B. To circulate blood throughout the body C. To produce hormones D. To supply the blood with oxygen and remove carbon dioxide

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