Practice Questions on the Respiratory System
Page 1

  1. What type of epithelium would you expect to find lining the lumen of the nasal cavity?
    1. Squamous ciliated epithelium without goblet cells
    2. Transitional epithelium with goblet cells
    3. Stratified squamous epithelium
    4. Pseudostratified epithelium
    5. None of the above

  2. The groove inferior to a nasal concha is known as a:
    1. Meatus
    2. Papilla
    3. Eustachian groove
    4. Lithysis
    5. Suture

  3. Consider the following statement: All laryngeal cartilages are made of hyaline cartilage. Which of the following is correct?
    1. The statement is true
    2. The statement is false because the thyroid cartilage is elastic cartilage
    3. The statement is false because the cricoid cartilage is fibrocartilage
    4. The statement is false because the glottis is elastic cartilage
    5. The statement is false because the epiglottis is elastic cartilage

  4. The medial opening between the vocal cords through which air passes during speech is known as the __________________.
  5. Which of the following is TRUE?
    1. The trachea is reinforced by 60-80 C-shaped rings of cartilage
    2. The trachealis is the ligament that connects the posterior open portion of the tracheal cartiliginous rings
    3. The trachea is part of the respiratory zone
    4. The trachea is part of the anatomical dead space

  6. As you proceed from primary bronchus to terminal bronchiole, the number of cilia present will _______________ and the number of goblet cells present will ______________.
  7. The smallest subdivision of the lung visible to the naked eye is the _________________.
  8. Increased parasympathetic activity causes the resistance to airflow in the bronchioles to ________________.
  9. Which of the following is TRUE?
    1. Intrapleural pressure is ALWAYS GREATER than intrapulmonary pressure
    2. Intrapulmonary pressure is ALWAYS GREATER than atmospheric pressure
    3. Intrapleural pressure is ALWAYS LESS than atmospheric pressure
    4. Intrapulmonary pressure is ALWAYS LESS than atmospheric pressure

  10. According to Boyle's Law, as volume ___________, pressure will decrease.
  11. Contraction of the diaphragm and external intercostals causes thoracic volume to ____________ which causes lung volume to _____________ which causes intrapulmonary pressure to ________________.
  12. The scalenes and sternocleidomastoids are predominantly involved in:
    1. Active inspiration
    2. Active expiration
    3. Quiet inspiration
    4. Quiet expiration

  13. As surfactant production decreases, lung compliance will _____________.
  14. If John's vital capacity is 4.5L and his tidal volume is 525cc, then what is his inspiratory reserve volume?
    1. 3975mL
    2. 2075mL
    3. 1050mL
    4. Cannot be determined from the information given

  15. What test measures the amount of gas expelled when one takes a deep breath and exhales maximally and rapidly?
    1. Forced expiratory volume test
    2. Forced vital capacity test
    3. Forced residual capacity test
    4. Forced internal thoracic volume assessment

  16. Which of the following is NOT a component of the respiratory membrane?
    1. Plasma membrane of the alveolar cell
    2. Plasma membrane of the capillary endothelial cell
    3. Fused basal laminae of the alveolar and the capillary endothelial cell
    4. All of the above are members of the respiratory membrane

  17. If alveolar Pco2 is high, the diameter of the bronchiole servicing that tissue will ______________.
  18. The binding of oxygen to hemoglobin is characterized as:
    1. Compliant
    2. Irreversible
    3. Reversible
    4. Noncompliant

  19. When a bicarbonate ion exits a red blood cell, a chloride ion will enter in order to maintain charge balance. This is known as the ________
  20. The dorsal respiratory group of the medulla oblongata is active during:
    1. Quiet inspiration
    2. Forced inspiration
    3. Forced expiration
    4. a and b
    5. b and c

  21. True or False: Lowered plasma oxygen levels are the most powerful respiratory stimulant.
  22. Air and food are routed into the proper channels by the:
    1. Trachea
    2. Pharynx
    3. Larynx
    4. Carina


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