oral histology MCQs – Page 2

Practise focused oral histology questions with marked answers for exam preparation and subject revision.

oral histology Mcqs
21. The tooth present close to maxillary sinus is_________________?
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A. 1st premolar

B. 2nd premolar

C. 1st molar

D. 2nd molar

22. Which of the following is not correct ?
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A. In chronic infections, the pain may mimic neuralgia of dental origin

B. None of the above

C. Malignant lesions of maxillary sinus produce their manifestations in maxillary teeth

D. In case of pituitary gigantis, all sinuses assume a larger volume than normal

23. The neutralization of saliva is due to______________?
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A. Ammonia

B. Bicarbonates

C. Mucin

D. Amino acids

24. The duct(s) of gland(s) opening into the floor of the mouth is (are)_______________?
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A. Von Ebner

B. submandibular and parotid

C. Sublingual and parotid

D. Submandibular and sublingual
25. Which of the following is true?
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A. Maxillary sinus is four- sided pyramid

B. Maxillary sinus communicates with environment through middle meatus and nasal vestibule

C. In most of the cases, the main ostium is present in posterior third of hiatus semilunar

D. All of the above
26. Bone at forming stage has_________________?
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A. None of the above

B. Megakaryocytes, osteoblasts, osteoclasts

C. Odontoblasts & megakaryocyte

D. Osteoclasts, osteoblasts, osteoid
27. Which of the following is correct?
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A. Roof of mandible contains thin, compact bone

B. All of the above

C. Condyle contains red bone marrow

D. Articular tubercle is composed of spongy bone covered with thin compact bone

28. Acid neutralizing substance in saliva_____________?
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A. Bicarbonate

B. Chlorides

C. NH3

D. Carbonate

29. Maxillary sinus is described as a four sided pyramid containing base, apex, roof and floor. The apex of maxillary sinus extends________________?
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A. Laterally into zygomatics process of maxilla

B. Laterally into lateral nasal wall

C. Superiorly into floor of orbit

D. Medially into zygomatic process of maxilla

30. Second arch derivatives are all except_________________?
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A. Superior part of hyoid bone

B. Malleus and incus

C. Styloid process

D. Stapes

31. Normal interincisal distance is____________________?
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A. 38 mm

B. 28 mm

C. 58 mm

D. 48 mm
32. Which of the following is true_____________?
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A. All of the above

B. The third auditory ossicle or stapes develops from 2nd branchial arch

C. Incus and malleus develops from mecketls cartilage

D. All the bones of upper face develop by intra membranous ossification

33. Whartons duct drains the_______________?
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A. Parotid

B. Lacrimal gland

C. Pancreas

D. Submandibular gland
34. Saliva is secreted by____________?
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A. Parotid gland

B. Major & minor salivary glands

C. Major salivary glands

D. Minor salivary glands

35. Which of the following is not correct?
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A. False denticles contains many dentinal tubules

B. Embedded denticles are entirely surrounded by dentin (embedded in dentin)

C. Free denticles are entirely surrounded by pulp tissue(free of dentin)

D. Attached denticles are partly fused with dentin

36. Functional importance of maxillary sinus is______________?
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A. Protects the brain against exposure to cold air by arresting air in sinus temporarily

B. Resonance of voice and enhancement of faciocranial resistance to mechanical shock

C. Lightening of skull weight and production of bactericidal lysozyme to the nasal cavity

D. All of the above
37. True about myoepithelial cell______________?
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A. All of the above

B. The cell expel secretions by contraction

C. Also known as basket cell

D. Structure is similar to smooth muscle and contains actin & myosin

38. Role of meckels cartilage in development of mandible__________________?
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A. It does not have any role

B. It has a minor role

C. It has a major role

D. None of the above

39. Among various glands, salivary gland secretion is unique in that, its secretions is unique in that, its secretion are controlled by___________?
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A. All of the above

B. Hormones

C. Chemicals

D. Nerves
40. Serous demilunes are seen in______________?
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A. Salivary glands

B. Gastric glands

C. Pancreas

D. Liver