The Respiratory System: Anatomy And Physiology Questions

56 Questions | Total Attempts: 6439

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The Respiratory System: Anatomy And Physiology Questions

Welcome to a whole test on the Respiratory system, related to the 'Young adult' case unit. It also contains some questions from the "Fetal" case unit (hemoglobin dissociation curve, surfactant questions). This test has more than 50 questions on this topic, so, attempt all the questions and examine your knowledge.


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

      Nose

    • B. 

      Oral cavity

    • C. 

      Pharynx

    • D. 

      Trachea

    • E. 

      Nasal meatuses

  • 2. 
    The conducting zone's role is to
    • A. 

      Clean air of debris

    • B. 

      Conduct air into the lungs

    • C. 

      Add water to air

    • D. 

      Warm air

    • E. 

      All of the above

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

      Septal cartilage

    • B. 

      External nares

    • C. 

      Choanae

    • D. 

      Uvulva

    • E. 

      Nasal meatuses

  • 4. 
    Which of the following is a passageway for air, food and water?
    • A. 

      Pharynx

    • B. 

      Larynx

    • C. 

      Paranasal sinuses

    • D. 

      Trachea

    • E. 

      Oesophagus

  • 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 structures rises?
    • A. 

      Pharynx

    • B. 

      Oesophagus

    • 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 oesophagus 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. 
    • 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. 

      Strafied 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 produces 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 gasese 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. 

      Inspiratory muscles relax and diaphragm contracts

    • E. 

      Inspiratory muscles relax, diagphragm contracts and blood circulation is the lowest

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

      High surface tension

    • B. 

      Low 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 haemoglobin

    • 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 oxyhaemoglobin ______________ 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