Pathophys Practice Quiz (Specific To Pulmonary Section Only)

20 Questions | Total Attempts: 93

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Pathophys Practice Quiz (Specific To Pulmonary Section Only) - Quiz

Practice pathophysiology quiz that includes important points from the pulmonary disease lectures only.


Questions and Answers
  • 1. 
    Moving inspired air into close proximity to the pulmonary capillary bed to enable gas exchange is the principle of:
    • A. 

      Simple diffusion

    • B. 

      Active transport

    • C. 

      Facilitated diffusion

    • D. 

      Osmosis

  • 2. 
    The forces needed to cause the air to flow are first initiated by:
    • A. 

      Spontaneous depolarization in the lung

    • B. 

      Respiratory muscles

    • C. 

      The CNS

    • D. 

      Vagal efferents

  • 3. 
    Which of the following is the site of gas exchange in the lung?
    • A. 

      Conducting airways

    • B. 

      Alveoli

    • C. 

      Bronchioles

    • D. 

      Tertiary bronci

  • 4. 
    Which vessel is responsible for providing blood to the bronchial wall?
    • A. 

      Pulmonary arteries

    • B. 

      Thoracic aorta

    • C. 

      Pulmonary capillaries

    • D. 

      Bronchial arteries

  • 5. 
    Which of the following is true about the pulmonary lymphatic system?
    • A. 

      Branches do not penetrate the alveolar wall

    • B. 

      Branches terminate at the lobar bronchi

    • C. 

      Branches extend as far as the alveolar sacs

    • D. 

      Branches end at the carina of the primary bronchi

  • 6. 
    Which type of efferent lung fiber mediates bronchoconstriction, vasodilation and mucous gland secretion?
    • A. 

      Sympathetic

    • B. 

      Parasympathetic

    • C. 

      NANC

    • D. 

      Adrenergic

  • 7. 
    Which of the following is an important mediator of sympathetic efferent fibers of the lung?
    • A. 

      Acetylcholine

    • B. 

      Epinephrine

    • C. 

      ATP

    • D. 

      Norepinephrine

  • 8. 
    The majority (75%) of COPD cases are diagnosed as:
    • A. 

      Chronic bronchitis

    • B. 

      Asthma

    • C. 

      Emphysema

    • D. 

      Lung fibrosis

  • 9. 
    The principal cause of disease in patients with COPD is:
    • A. 

      Alpha-1 protease inhibitor deficiency

    • B. 

      Chronic exposure to silica

    • C. 

      Alcohol use

    • D. 

      Smoking

  • 10. 
    The primary pathologic defect in emphysema is in the:
    • A. 

      Respiratory unit walls

    • B. 

      Tertiary/segmental bronchi

    • C. 

      Trachea

    • D. 

      Primary bronchi

  • 11. 
    A common consequence of diffuse parenchymal lung disease is:
    • A. 

      Emphysema

    • B. 

      Pneumonia

    • C. 

      Lung fibrosis

    • D. 

      Asthma

  • 12. 
    Which type of receptor is found on the organs that are stimulated by sympathetic fibers using norepinephrine?
    • A. 

      Adrenergic

    • B. 

      Cholinergic

    • C. 

      Muscarinic

    • D. 

      Nicotinic

  • 13. 
    Which neurotransmitter is typically cosecreted with norephinephrine?
    • A. 

      Epinephrine

    • B. 

      Neuropeptide Y

    • C. 

      Dopamine

    • D. 

      Serotonin

  • 14. 
    Vagal fibers from juxtacapillary receptors are:
    • A. 

      Also known as J fibers

    • B. 

      Responsible for eliciting efferent responses due to nonspecific stimuli

    • C. 

      Unmyelinated and respond to chemical & mechanical stimuli

    • D. 

      Stretch receptors that cause bronchodilation and an increased heart rate

  • 15. 
    Which represents the equilibrium point where the elastic recoil of the lung (tendency to collapse inward) and the chest wall (tendency to spring outward) are exactly balanced?
    • A. 

      Functional residual capacity

    • B. 

      Residual volume

    • C. 

      Total lung capacity

    • D. 

      Expiratory reserve volume

  • 16. 
    Which type of airflow often occurs at branch points or points distal to partial obstructions?
    • A. 

      Laminar

    • B. 

      Transitional

    • C. 

      Turbulent

    • D. 

      Obstructive

  • 17. 
    The majority of airflow resistance to normal breathing arises in: 
    • A. 

      Segmental bronchi

    • B. 

      Secondary bronchi

    • C. 

      Lobar bronchi

    • D. 

      Alveoli

  • 18. 
    In disease states that increase elastic forces (eg. pulmonary fibrosis), total work is minimized by:
    • A. 

      Rapid, shallow breathing

    • B. 

      Slow, deep breathing

    • C. 

      Rapid, deep breathing

    • D. 

      Slow, shallow breathing

  • 19. 
    In disease states with increased airflow resistance (eg, chronic bronchitis), total work is minimized by:
    • A. 

      Rapid, shallow breathing

    • B. 

      Slow, deep breathing

    • C. 

      Rapid, deep breathing

    • D. 

      Slow, shallow breathing

  • 20. 
    Which of the following is an example of a pathologic state that may result from an decrease in compliance?
    • A. 

      COPD

    • B. 

      Fibrosis

    • C. 

      Asthma

    • D. 

      Emphysema

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