Quiz: Histology — AUA MCQ

2. All of the following belong to the conducting portion of the respiratory system Except:

A b. Trachea. B c. Bronchi. C d. Bronchioles. D e. Alveolar ducts.

3. All of the following belong to the respiratory portion of the respiratory system Except:

A b. Terminal bronchioles. B c. Alveolar ducts. C d. Alveoli. D e. Alveolar sacs.

4. The nasal vestibules are lined by:

A a. Ps. Str. Columnar ciliated epithelium. B b. Str. sq. epithelium. C c. thin skin. D d. Str. col. epithelium.

5. Concerning the olfactory mucosa all of the following statements are true except: -

A a. Present at the roof of the nasal cavities and cover upper. parts of lateral wall and nasal septum. B b. The epithelium contains supporting, olfactory and basal cells. C c. Olfactory cells have long motile cilia. D d. No goblet cells are present in the epithelium.

6. Regarding the olfactory mucosa, all of the following statements are true except: -

A a. The epithelium is thick pseudo- stratified neuroepithelium. B b. The epithelium consists of three types of cells. C c. The olfactory sensory cells are bipolar nerve cells. D e. The corium contains Bowman's glands which secrete a serous fluid.

7. Regarding the olfactory mucosa, all of the following statements are true except: -

A b. The epithelium consists of three types of cells. B c. The olfactory sensory cells are unipolar neurons. C d. The corium contains Bowman's glands which secrete a serous fluid. D e. No goblet cells or motile cilia are present in the olfactory epithelium

8. Regarding the olfactory mucosa all of the following statements are true except: -

A b. The epithelium consists of three types of cells. B c. The olfactory sensory cells are bipolar neurons. C d. Goblet cells are numerous in the olfactory epithelium. D a. The epithelium is thick pseudo- stratified neuroepithelium.

9. Regarding the olfactory mucosa all of the following statements are true except :-

A a. The epith. is thick pseudo- stratified neuroepithelium. B b. The epithelium consists of three types of cells. C c. The olfactory sensory cells are bipolar neurons. D d. The corium contains Bowman's glands which secrete mucus.

10. Regarding the olfactory sensory cells of the olfactory epithelium which one of the following is true:-

A a. Are unipolar neurons. B b. The dendrites pass to the corium. C d. Have axonal processes confined to the epithelium surface. D e. Are associated with odor specific receptors.

10. Regarding the olfactory sensory cells of the olfactory epithelium which one of the following is true:-

A a. Are unipolar neurons. B b. The dendrites pass to the corium. C d. Have axonal processes confined to the epithelium surface. D e. Are associated with odor specific receptors.

11. The yellowish pigment of the olfactory mucosa is present in :

A b. Supporting cells. B c. Basal cells. C d. Pigment cells in the C.T. lamina propria. D e. Olfactory vesicles.

12. The swell bodies are large venous plexuses present in :

A a. The corium of the mucosa of the olfactory area of the nasal fossae. B b. The corium of the mucosa of the respiratory area of the nasal fossae. C c. The corium of the of pharyngeal mucosa. D d. The corium of the laryngeal mucosa.

13. Regarding the epiglottis which one of the following statements is Not true:

A a. Has a central epiglottic hyaline cartilage. B b. Has a lingual surface and a laryngeal surface. C c. The lingual surface is covered by str, sq, epithelium. D e. The lamina propria contains mixed mucous and serous. glands.

14. The epithelium of the true vocal cords is:

A b. Str.sq. epithelium. B c. Ps. str. col. ciliated epithelium. C d. Str. col. ciliated epithelium. D e. Simple cubical epithelium.

15. The epithelium of the false vocal cords is:

A a. Simple squamous epithelium. B b. Str squamous epithelium. C c. Ps. stratified columnar. citirated epithelium. D d. stratified columnar. citirated epithelium.

16. All of the following are characters of the trachea Except :-

A b. The submucosa contains sero –mucous tubulo –alveolar glands. B c. Elastic membrane separates the corium from the submucosa. C d. The circular cartilage rings are 16-20 rings. D e. The cartilage of the trachea is hyaline cartilage.

17. All of the following cells are present in the tracheal epithelium Except:

A a. Columnar ciliated cells. B d. Serous cells. C b. Goblet cells. D e. Clara cells.

18. In the trachea, the lamina propria is separated from the submucosa by:

A b. A band of condensed fibro – elastic membrane. B c. A band of elastic fibro cartilage. C d. A C- shaped ring of hyaline cartilage. D e. Irregular plates of hyaline cartilage.

19. Regarding the cartilage of the trachea, which one of the following statements is not correct :

A a. Is hyaline cartilage. B b. In the form of c- shaped rings. C c. Present at the outer fibro–cartilage coat. D d. The gaps between the free edges are directed anteriorly.

20. Regarding the cartilage of the trachea, which one of the following statements is not correct:

A a. Is elastic fibro- cartilage. B b. In the form of c- shaped rings. C c. The gaps between the free edges are directed posteriorly. D d. Present at the outer fibro – cartilage coat.

21. The intra–pulmonary bronchus is characterized by all of the following except one:

A a. Highly folded mucosa. B b. The epithelium is simple columnar ciliated with goblet cells. C c. The corium is C.T rich in elastic fibers. D d. Muscle layer is spirally arranged around the mucosa.

21. The intra–pulmonary bronchus is characterized by all of the following except one:

A a. Highly folded mucosa. B b. The epithelium is simple columnar ciliated with goblet cells. C c. The corium is C.T rich in elastic fibers. D d. Muscle layer is spirally arranged around the mucosa.

22. The intra–pulmonary bronchus is characterized by (one answer is correct):

A a. Wider than trachea and flattened posteriorly. B b. The mucosa is flattened all around. C c. Complete muscle layer surrounds the mucosa. D e. Mucous and serous glands are present in the submucosa.

23. Concerning the intrapulmonary bronchus, all of the following statements are correct Except:

A a. It is narrower than trachea. B b. The mucosa is heavily folded all around. C c. The epithelium contains much numerous goblet cells than that.of tracheal epithelium. D e. No submucosa.

24. The intra–pulmonary bronchus is characterized by all the following except:

A b. Circular circumference. B c. The mucosa is heavily folded all around. C d. Goblet cells are fewer than that of tracheal epithelium. D e. Elastic membrane separates the corium from the submucosa.

25. The intra–pulmonary bronchus is characterized by all the following except:

A a. Narrower than trachea. B b. Circular circumference. C c. The mucosa is heavily folded all around. D d. The submucosa contains irregular plates of cartilage, mucous. glands and lymphatic nodules.

26. Regarding the bronchioles, all of the following are correct (Except one):

A a. The diameter is Less than 1 mm. B b. The epithelium consists of ciliated cells and Clara cells. C c. The Clara cells secrete serous secretion. D e. Irregular cartilage plates, muco- serous glands and lymphatic nodules are present at the adventitia.

27. Concerning the bronchioles, all of the following are correct Except one:

A a. The diameter is less than 1mm. B b. The epithelium consists of ciliated cells and numerous. goblet cells. C d. No cartilage is present in the wall. D e. No glands, nor lymphatic nodules are present in the wall.

28. The bronchioles are characterized by all of the following except:

A a. The diameter is less than 1mm. B b. The epithelium consists of ciliated cells and Clara cells C c. The Clara cells secrete mucous secretion. D d. The muscle layer is well developed.

29. All the following are characters of the bronchioles except:

A a. The diameter is less than 1mm. B c. The muscle layer is poorly developed. C e. No glands , or lymphatic nodules are present in the wall. D d. No cartilage is present in the wall.

30. Regarding the bronchioles (one answer is correct) :

A a. The diameter is more than 2mm. B b. Absence of goblet cells and abundance of Clara cells. C c. Poorly developed muscle layer. D d. Thick corium poor in elastic fibers.

31. All the following are characters of the terminal bronchiole Except:

A a. Is the smallest and terminal part of the conducting portion of the respiratory system. B b. Lined by ciliated cells and goblet cells. C c. Has well developed muscular coat. D d. No cartilage is present in the wall.

32. Concerning the terminal bronchioles which one of the following is Not correct:

A a. Is the smallest and terminal part of the respiratory portion ofthe respiratory system. B b. Lined with ciliated cells and Clara cells. C c. Has well developed muscular coat. D d. No cartilage is present in the wall.

33. Regarding the terminal bronchiole, all of the following are correct except:

A b. Interrupted by alveoli. B d. Has well developed muscular coat. C e. No glands, or cartilage and no lymphatic nodules are present in the wall. D c. Lined with ciliated cells and Clara cells.

34. Concerning the respiratory bronchioles, all the following statements are correct except:

A a. Arise from the bifurcation of the terminal bronchiole. B b. Lined with cubical ciliated and non-ciliated epithelium and Clara cells. C c. Divide to form alveolar ducts. D d. Involved in gaseous exchange.

35. Concerning alveolar ducts all the following statements are correct Except:

A b. The wall is interrupted by alveoli. B c. Lined by ps. str. Col. ciliated epithelium. C a. Long branching passages arise from respiratory bronchioles. D d. Surrounded by C.T., elastic fibers and smooth muscle fibers e. Have no cartilage

36. Concerning the alveolar epithelium, each of the following statements are correct Except:

A a. The epithelium rest on a very thick basement membrane. B b. Type-I- pneumocyte constitute the majority (95%). C c. Type II pneumocytes constitutes the minority (5%). D d. For gas exchange and secretion of pulmonary surfactant.

37. Regarding type –I pneumocyte, all of the following statements are correct Except:

A b. Flat squamous cells. B c. Can divide and give type II pneumocytes. C d. For gaseous exchange. D e. Joined to neighboring pneumocytes by tight junction.

38. Regarding type–I pneumocyte, all of the following statements are true Except:

A a. Constitute the majority of the alveolar lining cells. B b. Flat squamous cells. C c. Can not divide. D e. Joined to neighboring pneumocytes by gap junction.

39. Which one of the following statements describe type-I pneumocytes:

A a. They are precursors of type II pneumocytes. B b. They have loose intercellular junction. C c. They represent 5% of the alveolar lining cells. D d. They provide an extremely thin gas permeable barrier. e. They are involved in production of surfactant.

40. All the following describe type II pneumocytes Except:

A a. Represent 5% of the alveolar lining cells. B b. Have the capacity to divide into type I and type II pneumocytes. C c. Secretes surfactant which increase the surface tension. D d. Secrets surfactant which decreases the surface tension.

41. Each of the following is part of the minimal blood air barrier except:

A a. Basal laminae. B b. Alveolar epithelium. C c. Endothelial lining. D d. A network of reticular fibers and elastic fibers.

42. Regarding the alveolar macrophages all of the following is correct except: -

A a. Are monocyte in origin. B b. Present in the inter-alveolar septum and the lumen of the alveoli. C c. Represent the least number of other cell types of the lung. D e. Phagocytose dust coal particles and extravasated RBCs.

Regarding dead space one of the following is correct.

A A- It increases by vagal stimulation. B B- Decreased with aging, C C- Physiological dead space equals to alveolar dead space. D D- The alveolar dead space always pathological.

1. All of the following belong to the conducting portion of the respiratorysystem Except:

A a.Trachea. B b.Bronchi C c. Terminal bronchioles. D d. Respiratory bronchioles.

2. All of the following belong to the conducting portion of the respiratorysystem Except:

A a. Larynx. B b. Trachea. C c. Bronchi. D d.Alveolar ducts.

3. All of the following belong to the respiratory portion of the respiratorysystem Except:

A a. Respiratory bronchioles B b. Terminal bronchioles. C c. Alveolar ducts. D d. Alveoli.

4. The nasal vestibules are lined by:

A a. Ps. Str. Columnar ciliated epithelium B b. Str. sq. epithelium. C c. thin skin. D d. Str. col. epithelium.

5. Concerning the olfactory mucosa all of the following statements are trueexcept: -

A a. Present at the roof of the nasal cavities and cover upper. parts of lateral wall and nasal septum. B b. The epithelium contains supporting, olfactory and basal cells. C c. Olfactory cells have long motile cilia. D d. No goblet cells are present in the epithelium.

6. Regarding the olfactory mucosa, all of the following statements are trueexcept: -

A a. The epithelium is thick pseudo- stratified neuroepithelium. B b. The epithelium consists of four types of cells. C c. The olfactory sensory cells are bipolar nerve cells. D d. No goblet cells or motile cilia are present in the olfactory epithelium.

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