Advanced Lung Quiz

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This quiz contains 10 questions. Click below to begin.

Q1. What anatomical structure marks the bifurcation of the trachea?

  • Cricoid cartilage
  • Carina
  • Hilum
  • Larynx

Q2. Which lung segment is most commonly affected by aspiration in a supine patient?

  • Apical segment of left upper lobe
  • Right middle lobe
  • Basal posterior segment
  • Superior segment of right lower lobe

Q3. What histological feature distinguishes bronchi from bronchioles?

  • Alveolar sacs
  • Ciliated cells
  • Presence of cartilage and glands
  • Smooth muscle

Q4. Which cell type in the alveoli plays a primary role in removing debris?

  • Type I pneumocytes
  • Goblet cells
  • Alveolar macrophages
  • Basal cells

Q5. How does the pulmonary circulation accommodate increased cardiac output during exercise?

  • Reduces lung compliance
  • Thickens alveolar membrane
  • Dilates vessels and recruits capillaries
  • Contracts pulmonary veins

Q6. What is the function of Clara (club) cells in terminal bronchioles?

  • Produce cilia
  • Phagocytosis of bacteria
  • Transport oxygen
  • Detoxify, secrete surfactant, repair epithelium

Q7. Which layer of the pleura is sensitive to pain?

  • Visceral pleura
  • Pleural fluid layer
  • Pulmonary ligament
  • Parietal pleura

Q8. What is the partial pressure of oxygen in alveolar air under normal atmospheric conditions?

  • 140 mmHg
  • 120 mmHg
  • 104 mmHg
  • 75 mmHg

Q9. Which bronchopulmonary segment is anatomically adjacent to the heart on the left?

  • Lingular segment
  • Anterior basal segment
  • Posterior segment
  • Apical segment

Q10. What is the primary driving force for oxygen diffusion across the alveolar membrane?

  • Active transport proteins
  • Oxygen partial pressure gradient
  • Carbon dioxide gradient
  • Osmotic pressure
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