Physiology II

Question 1 of 7

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All of the following about bronchioles is true except?

Select one of the following:

  • Has ciliated cells

  • has cartilage

  • has smooth muscle

  • no mucous production

  • has cilia

  • none of the above

Question 2 of 7

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Respiratory bronchioles - all of the following are true except?

Select one of the following:

  • Belong to the respiratory zone

  • They are the 17-19 degree branches

  • has cilia, smooth muscle and cartilage

  • none of the above

Question 3 of 7

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Lung region with highest cross sectional area is alveoli

Select one of the following:

  • True
  • False

Question 4 of 7

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Regarding alveolus

Select one of the following:

  • Lined by a single layer of simples squamous epithelium - type I Pneumocytes

  • Type II pneumocytes are cuboidal and secrete surfactant

  • Clara/club cell are found and are similar to stem cell because they can divide and replace other clara cells

  • Alveoli do not contain cilia -> no mucociliary clearance

  • all of the above are correct

Question 5 of 7

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Regarding the circulating system

Select one of the following:

  • Pulmonary capillary pressure = 10 mm of Hg, Pulmonary vein = 6 mmHg, LA = 5 mmHg, LV = 120/0

  • Systemic capillary pressure = 20 mmHg, Systemic Veins 15 mmHg, RA = 2 mmHg, RV = 25/0,

  • In fetus the Pulmonary pressures are very high and systemic pressures are low

  • Adult circulation the Pulmonary pressures are about 1/5 of Systemic circulation

  • All of the above are true

  • 1 and 2 are true

Question 6 of 7

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Alveoli are kept dry because

Select one of the following:

  • Air pressure pushes the fluid out of the alveoli into the interstitium

  • Colloid osmotic pressure keeps the fluid in the capillary

  • Hydrostatic pressure in the capillary pushes fluid out into the interstitium

  • Surface tension in the alveolus pulls the fluid out into the alveolus

  • None of the above

  • all of the above

Question 7 of 7

Medal-premium 1

Secondary functions of respiratory system are conversion of angiotensin I to angiotensin II, reservoir of blood, maintain blood pH

Select one of the following:

  • True
  • False
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Physiology II

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Quiz by , created over 1 year ago

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ivenkat
Created by ivenkat over 1 year ago
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