ORal HIStology
10. Bartholin’s duct is of
σ Parotide gland
σ Sub-mandibular gland
σ Sub-lingual gland
σ Minor gland
11. Von Ebner’s salivary gland is
σ Parotide gland
σ Minor gland
σ Sub-mandibular gland
σ Sub-lingual gland
12. Function of acini is
σ to produce saliva
σ to produce gastric acid
σ to produce histamine
σ to produce hormone
13. Lumen is
σ a central opening of an oral cavity
σ a cental opening of an acini
σ a central opening of a tooth
σ a central opening of a gland
14. Myoepithelial cell of an acini is
σ kind of contractile cell on an acini
σ kind of contractile cell on an acini
σ kind of cell in a heart
σ kind of cell in a tonsil
15. Intercalated duct is
σ a duct from a paritide gland
σ a duct from a lumen
σ a duct from acinus
σ a duct from a salivery gland
16. Striated duct is:
σ a duct from a salivery gland
σ a duct from a system duct
σ a duct from a submandibular gland
σ a duct from intercalated ducts
17. Excretory duct is
σ a duct from a parotide gland
σ a duct from a submandibular gland
σ a duct from a striated ducts
σ a duct from a sublimgual gland
23. Atrophy គឺជា
σ Acute inflammation
σ Chronic inflammation
σ Lack of nutrition for cells
σ Lack of oxygen for cells
24. Hypertrophy គឺជា
σ Increase in size of an organ
σ Increase in cell number of an organ
σ Decrease in size of an organ
σ Decrease in cell number of an organ
25. Hyperplasia គឺជា
σ Increase in size of an organ or tissue
σ Decrease in size of an organ
σ Increase in cell number of an organ or tissue
σ Decrease in cell number of an organ
26. Displasia គឺជា
σ Disorder of cell in mitosis
σ Disorder of cell in migration
σ Disorder of cell in migration
σ Disorder of cell structure formation
27. Taste buds មិនមាននៅក្នុង
σ Filiform papillae
σ Circumvallate papillae
σ Fungiform papillae
σ Foliate papillae
28. Sulcular epithelium is formed of:
σ Nonkeratinized stratified squamous epithelium
σ Parakeratinized stratified squamous epithelium.
σ Orthokeratinized stratified squamous epithelium
σ Columnar epithelium
29. Which of the following is a wrong statement about the dentogingival junction
σ Its epithelial cells are keratinized stratified squamous.
σ It has an epithelial and a connective tissue component.
σ It shifts apically with age.
σ Its coronal end corresponds to the bottom of the gingival sulcus.
30. Keratinized epithelium differs from nonkeratinized epithelium in that:
σ Contain a higher glycogen content
σ It contains granular cell layer
σ It does not contain basal lamina.
σ No tonofilaments are found in it
31. The buccal mucosa:
σ It is firmly attached to the underlying tissues.
σ Has numerous connective tissue papillae
σ Is continuous with the gingival mucosa.
σ Has a keratinized epithelium.
32. Masticatory mucosa has:
σ Elastic fibers in its blood vessels wall
σ Elastic fibers in its lamina propria.
σ Stratum corneum.
σ No connective tissue papillae.
33. Which of the following is true of the sulcular epithelium:
σ Contain connective tissue papillae
σ Is nonkeratinized.
σ Consists of keratinized epithelium
σ Has submucosa.
34. Parakeratinized epithelium is found in
σ Gingiva
σ Vestibular fornix
σ Floor of the mouth.
σ Ventral surface of tongue
36. The mucogingival junction is the junction of:
σ Alveolar mucosa and attached gingiva
σ Palatine gingival & rougae zone.
σ Free gingiva and attached gingiva
σ Sulcular epithelium & free gingiva
37. The mucosa of the dorsal surface of the tongue is:
σ Spesialized mucosa.
σ Masticatory mucosa
σ Linning mucosa.
σ Smooth surface
40. The structure of the oral mucosa is:
σ Epithelium, lamina propria and basement membrane
σ Epithelium, lamina propria and muscular layer.
σ Mucosa & submucosa
σ Epithelium and basement membrane.
42. Fungiform papillae:
σ Carry taste buds.
σ Have a lamina propria which is poorly vascularized.
σ Have a stratum corneum
σ Are seen as white spots
44. Which of the following regions has a nonkeratinized epithelium and is loosely attached to the underlying structures?:
σ Hard palate
σ Vestibular fornix
σ Attached gingiva
σ Buccal mucosa
45. The floor of the mouth is lined by
σ Linning mucosa loosely attached.
σ Linning mucosa firmly attached.
σ Specialized mucosa.
σ Masticatory mucosa.
46. Keratohyaline granules in epithelial cells of keratinized mucosa are associated with:
σ The tonofilaments
σ Prickle cell layer.
σ Basal cell layer.
σ Stratum granulosum.
47. 20 Which of the following contributes to the reddish coloration of the vermilion border?:
σ Epithelial keratinization.
σ Existance of high number of langerhans cells.
σ Vascularity of the lamina propria
σ Thichness of oral epithelium
48. Which of the following are not usually found in the keratinocytes of the stratum spinosum of keratinized oral epithelium?:
σ Keratohyaline granules.
σ Tonofibrils.
σ Membrane coating granules
σ Ribosomes.
49. The sulcular epithelium:
σ Has long epithelial ridges
σ Is nonkeratinized.
σ Has thick epithelial layer.
σ Is keratinized.
50. Taste buds are not found on
σ Fungiform papillae
σ Foliate papillae
σ Circumvallate papillae
σ Filliform papillae
51. Which of the following is not present in the stratum spinosum?:
σ Keratohyaline granules
σ Odland's bodies.
σ Tonofilaments.
σ Desmosomes.
53. Which of the following is a transiant cell in the oral epithelium:
σ Lymphocyte.
σ Melanocyte.
σ Merkel cell.
σ Langerhans cell
56. Which of the following is true of the attachment epithelium?
σ Its coronal end is found at the bottom of the gingival sulcus.
σ Its apical migration is the major causative factor in active eruption
σ Is impermeable to dyes and fluids.
σ Can migrate coronally.
60. Those papillae of the tongue which are the largest, having many taste buds and are associated with the duct of Von Ebner's gland are:
σ Folliate
σ Filliform.
σ Fungiform.
σ Circumvallate
58. Which of the following papillae of the tongue do not contain taste buds:
σ Filliform.
σ Vallate
σ Foliate
σ Fungiform
62. Tongue papillae responsible for bitter taste sensation:
σ Filliform papillae.
σ Fungiform papillae.
σ Circumvallate papillae
σ Foliate papillae
61. Glands emptying the circumvalate trough are the
σ Serous glands
σ Mucous glands.
σ Glands of Nuhn
σ Mucous and serous mixed glands
63. Cornified layer មាននៅក្នុងៈ
Keratinized epithelium
Nonkeratinized epithelium
Parakeratinized epithelium
Orthokeratinized epithelium
64. Superficial layer មាននៅក្នុងៈ
Keratinized epithelium
Nonkeratinized epithelium
Parakeratinized epithelium
Orthokeratinized epithelium
65. Intermediate layer មាននៅក្នុងៈ
Keratinized epithelium
Nonkeratinized epithelium
Parakeratinized epithelium
Orthokeratinized epithelium
68. Specialized cells stem from
Granular layer
σ Cornified layer
Basement membrane
Basal layer and prickle cell layer
80. The lymph nodes មានតួនាទី :
σ ច្រោះ Toxic products
σ ច្រោះ Glucose
σ ច្រោះ Lipids
σ ច្រោះ Proteins
83. Diskeratosis គឺជាៈ
σ Abnormality of orientation and development of epithelial cells.
σ Abnormality of orientation and cells mitosis.
σ Abnormality of migration and cells mitosis.
σ Abnormality of structure and development of epithelial cells.
85. Hyperkeratosis is:
σ Increase in longevity of keratin layer or stratum corneum
σ Increase in thickness of keratin layer or stratum corneum
σ Increase in size of keratin layer or stratum corneum
σ Increase in wideness of keratin layer or stratum corneum
87. Parasites are types of
σ Pathogenic bacteria
σ Pathogenic virus
σ Nonpathogenic bacteria
σ Disease
90. Technical term for bacteria that live on dead matter is:
σ Flagella
σ Viruses
σ Saprophytes
σ Parasites
91. The spirilla bacteria Trepnema pallida causes:
σ Tuberculosis
σ Pneumonia
σ Syphilis
σ Abscesses
96. The areas of the tongue with the most taste buds is the:
σ Tip and sides
σ Underneath
σ Back
σ Top
99. The sour taste come from:
σ Citric acids
σ Amino acids
σ Sodium chloride
σ All the answers in this question are incorrect
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