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Respiratory System

26 Questions
Respiratory System Quizzes & Trivia

Test banks Respiratory System

Questions and Answers
  • 1. 
    Which of the following is not part of the upper respiratory system?
    • A. 

      Nose

    • B. 

      Oral cavity

    • C. 

      Pharynx

    • D. 

      Trachea

    • E. 

      Nasal meatuses

  • 2. 
    The conducting zone does NOT act to
    • A. 

      Clean air of debris

    • B. 

      Conduct air into the lungs

    • C. 

      Add water to air

    • D. 

      Warm air

    • E. 

      Does none of the above

  • 3. 
    The nose connects with the pharynx through the
    • A. 

      Septal cartilage

    • B. 

      External nares

    • C. 

      Choanae

    • D. 

      Uvula

    • E. 

      Nasal meatuses

  • 4. 
    • A. 

      Pharynx

    • B. 

      Larynx

    • C. 

      Paranasal sinuses

    • D. 

      Trachea

    • E. 

      Esophagus

  • 5. 
    The opening to the pharynx from the mouth is called
    • A. 

      Palatine

    • B. 

      Hypopharynx

    • C. 

      Meatuses

    • D. 

      Fauces

    • E. 

      Vestibule

  • 6. 
    This structure prevents food or water from entering the trachea.
    • A. 

      Arytenoid cartilage

    • B. 

      Epiglottis

    • C. 

      Nasopharynx

    • D. 

      Thyroid cartilage

    • E. 

      Paranasal sinus

  • 7. 
    During swallowing, which structure rises?
    • A. 

      Pharynx

    • B. 

      Esophagus

    • C. 

      Trachea

    • D. 

      Palatine tonsils

    • E. 

      Primary bronchi

  • 8. 
    These are triangular pieces of mostly hyaline cartilage located at the posterior and superior border of the cricoid cartilage.
    • A. 

      Corniculate cartilage

    • B. 

      Arytenoids cartilage

    • C. 

      Cricotracheal cartilage

    • D. 

      Cuneiform cartilage

    • E. 

      Laryngeal cartilage

  • 9. 
    Pitch is controlled by
    • A. 

      Vibration of the vocal chords

    • B. 

      Tension of the vocal chords

    • C. 

      Layers of cartilage in the vocal chords

    • D. 

      Arrangement of the vocal chords

    • E. 

      None of the above

  • 10. 
    This is located anterior to the esophagus and carries air to the bronchi.
    • A. 

      Trachea

    • B. 

      Larynx

    • C. 

      Nasopharynx

    • D. 

      Pharynx

    • E. 

      None of the above

  • 11. 
    This is the primary gas exchange site.
    • A. 

      Trachea

    • B. 

      Bronchiole

    • C. 

      Nasal sinuses

    • D. 

      Alveolus

    • E. 

      Bronchus

  • 12. 
    Which of the below tissues maintains open airways in the lower respiratory system?
    • A. 

      Stratified squamous epithelium with keratin

    • B. 

      Ciliated pseudostratified columnar epithelium with goblet cells

    • C. 

      Hyaline cartilage

    • D. 

      Mucus membrane

    • E. 

      Bone

  • 13. 
    Which of the below tissues provides the functions of the inner layer of the conducting organs?
    • A. 

      Stratified squamous epithelium with keratin

    • B. 

      Ciliated pseudostratified columnar epithelium with goblet cells

    • C. 

      Cilated cuboidal epithelium with goblet cells

    • D. 

      Transitional epithelium with cilia

    • E. 

      Columnar connective tissue with goblet cells

  • 14. 
    The point where the trachea divides into right and left primary bronchi is a ridge called
    • A. 

      Carina

    • B. 

      Secondary bronchioles

    • C. 

      Parietal pleura

    • D. 

      Visceral pleura

    • E. 

      Diaphragm

  • 15. 
    Which of the below tissues forms the exchange surfaces of the alveolus?
    • A. 

      Stratified squamous epithelium

    • B. 

      Ciliated pseudostratified columnar epithelium with goblet cells

    • C. 

      Simple squamous epithelium

    • D. 

      Hyaline cartilage

    • E. 

      Columnar connective tissue with goblet cells

  • 16. 
    These are cells of the alveoli that produce surfactant.
    • A. 

      Type I alveolar cells

    • B. 

      Type II alveolar cells

    • C. 

      Type III alveolar cells

    • D. 

      Surface cells

    • E. 

      Macrophages

  • 17. 
    This is direction of diffusion of gases at capillaries near systemic cells.
    • A. 

      Oxygen into blood , Carbon dioxide into blood

    • B. 

      Oxygen out of blood , Carbon dioxide into blood

    • C. 

      Oxygen into blood , Carbon dioxide out of blood

    • D. 

      Oxygen out of blood , Carbon dioxide out of blood

  • 18. 
    This is direction of diffusion of gases at the alveoli of the lungs.
    • A. 

      Oxygen into blood , Carbon dioxide into blood

    • B. 

      Oxygen out of blood , Carbon dioxide into blood

    • C. 

      Oxygen into blood , Carbon dioxide out of blood

    • D. 

      Oxygen out of blood , Carbon dioxide out of blood

  • 19. 
    Exhalation begins when
    • A. 

      Inspiratory muscles relax

    • B. 

      Diaphragm contracts

    • C. 

      Blood circulation is the lowest

    • D. 

      Both a and b

    • E. 

      All of the above

  • 20. 
    This means the lungs and the chest wall expand easily.
    • A. 

      High surface tension

    • B. 

      High surface tension

    • C. 

      High compliance

    • D. 

      Low compliance

    • E. 

      None of the above

  • 21. 
    The conducting airways with the air that does not undergo respiratory exchange are known as the
    • A. 

      Inspiratory volume

    • B. 

      Expiratory reserve volume

    • C. 

      Minimal volume

    • D. 

      Residual volume

    • E. 

      Respiratory dead space

  • 22. 
    This is the sum of the residual and the expiratory reserve volume.
    • A. 

      Total lung capacity

    • B. 

      Functional residual capacity

    • C. 

      Inspiratory capacity

    • D. 

      Vital capacity

    • E. 

      Minimal volume

  • 23. 
    Which of the following is not a factor that the rate of pulmonary and systemic gas exchange depends on.
    • A. 

      Partial pressure difference of the gases

    • B. 

      Surface area for gas exchange

    • C. 

      Diffusion distance

    • D. 

      Molecular weight and solubility of the gases

    • E. 

      Force of contraction of diaphragm

  • 24. 
    Which is the dominant method of carbon dioxide transport?
    • A. 

      Bound to hemoglobin

    • B. 

      Bound to oxygen

    • C. 

      Dissolved in plasma as a gas

    • D. 

      Dissolved in plasma as bicarbonate ions

    • E. 

      Diffusion

  • 25. 
    When blood pH drops then the amount of oxyhemoglobin _______ and oxygen delivery to the tissue cells ________________.
    • A. 

      Increases, increases

    • B. 

      Increases, decreases

    • C. 

      Decreases, increases

    • D. 

      Decreases, decreases

    • E. 

      Does not change, does not change

  • 26. 
    Which is a factor that does NOT affect hemoglobin’s affinity for oxygen?
    • A. 

      PH of blood

    • B. 

      Partial pressure of the oxygen

    • C. 

      Amount of oxygen available

    • D. 

      Temperature

    • E. 

      Respiratory rate

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