Pathophys Practice Quiz (Specific To Pulmonary Section Only)
Practice pathophysiology quiz that includes important points from the pulmonary disease lectures only.
- 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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