Oral Histology Test

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Oral Histology Test

1 / 60

Superficial layer មាននៅក្នុងៈ

a. Parakeratinized epithelium

b. Keratinized epithelium

c. Nonkeratinized epithelium

d. Orthokeratinized epithelium

2 / 60

Which of the following cells synthesize protein which remains within the cell without secretion:

a. Plasma cell.

b. Osteoblasts.

c. Keratinocyte.

d. Fibroblast.

3 / 60

The oral mucosa ចែកចេញជា:

a. បួនស្រទាប់ epithelium, basal layer, connective tissue and corium

b. បួនស្រទាប់ epithelium, connective tissue, lamina propria and corium

c. ពីរស្រទាប់ epithelium and connective tissue

d. បីស្រទាប់ epithelium, connective tissue and lamina propria

4 / 60

Acantholysis គឺជាៈ

a. Destroying desmosome in stratum basal cells

b. Destroying desmosome in stratum granulosome cells

c. Destroying desmosome in stratum spinosum cells

d. Swelling in intracellular space destroying desmosome in stratum spinosum cells

5 / 60

Which of the following is not found in saliva :

a. Phosphate

b. Triypsine

c. Lysozyme

d. Bicarbonate

6 / 60

The humans, the lining epithelium of the esophagus is?

a. Simple columnar

b. Stratified squamous, keratinized

c. Transitional

d. Stratified squamous, non-keratinized

7 / 60

Vesicle or Bullae of the mucous membrane or skin are seen in all the following except :

a. Herpes simplex

b. A granulocytosis

c. Pemphigus

d. Herpes zoster

8 / 60

The parotid gland opens :

a. At the caruncular

b. On the floor of the mouth

c. On the buccal mucosa opposite the maxillary second molar

d. At the side of the lingual frenum

9 / 60

Which one of the following epithelium is least common?

a. Transitional

b. Stratified columnar

c. Simple columnar

d. Pseudo stratified columnar ( ciliated )

10 / 60

Keratohyalin granules are present in:

a. Granular layer and prickle cell layer

b. Basement membrane

c. Basal layer and prickle cell layer

d. Cornified layer

11 / 60

B-cells ( lumphocytes ) can?

a. Secrete interferon

b. Give rise to plasma cells

c. Kill other cells

d. Suppress T-cells

12 / 60

Bartholin’s duct drains the:

a. Parotid

b. Lacrimal gland

c. Submandibular gland

d. Sublingual gland

13 / 60

Which of the following is a wrong statement about the dentogingival junction:

a. It shifts apically with age.

b. Its epithelial cells are keratinized stratified squamous.

c. Its coronal end corresponds to the bottom of the gingival sulcus.

d. It has an epithelial and a connective tissue component.

14 / 60

Specialized cells stem from

a. Granular layer

b. Cornified layer

c. Basal layer and prickle cell layer

d. Basement membrane

15 / 60

Sulcular epithelium is formed of:

a. Orthokeratinized stratified squamous epithelium.

b. Parakeratinized stratified squamous epithelium.

c. Nonkeratinized stratified squamous epithelium.

d. Columnar epithelium.

16 / 60

The mucous membrane of cheek and lips?

a. It attached to buccinators muscle in cheek

b. All the answers in this question are incorrect

c. It attached to orbicularis oris in lips

d. A and B are correct

17 / 60

Soft palate is?

a. Looser posterior portion of the palate

b. Anterior pillar of tonsils

c. Looser anterior portion of the palate

d. Posterior pillar of tonsils

18 / 60

The vermilion border requires frequent moistening because?

a. It contains more of sweat glands

b. It contains less number of sweat glands

c. It contains more of sebaceous glands

d. It contains less number of sebaceous glands

19 / 60

Glands are classified based on?

a. Made of secretion

b. Branching pattern of the ducts

c. Their secretory product

d. All the answers in this question are correct

20 / 60

The grooved- shaped papillae on the sides of the tongue are called:

a. Filliform

b. Circumvallate

c. Foliate

d. Fungiform

21 / 60

Hypertrophy is?

a. Decrease in size of an organ

b. Decrease in cell number of an organ

c. Increase in cell number of an organ

d. Increase in size of an organ

22 / 60

Which of the following mucosa has a nonkeratinized epithelium :

a. Free gingiva.

b. Attached gingiva.

c. Palatal mucosa.

d. Mucosa of the floor of the mouth.

23 / 60

Stratum granulosum is not present in?

a. Sulcular epithelium

b. Hyper orthokeratosis

c. Hyper parakeratosis

d. Non keratinized epithelium

24 / 60

ទីតាំងរបស់ Pharyngeal tonsil គឺៈ

a. នៅលើ Palate

b. នៅលើ Pharynx

c. នៅលើ Larynx

d. នៅខាងលើនិងខាងក្រោយកន្លែងបត់នៃរន្ធច្រមុះទៅក្នុង Nasopharynx

25 / 60

Bulk of lamina propria of the gingiva is made of collagen type?

a. III

b. II

c. IV

d. I

26 / 60

The function of myoepithelial cells may be :

a. Support for the end piece during active secretion of saliva

b. Initiating contraction

c. All the answers in this question are correct

d. Provide signals to the acinar secretory cells for structural reorganization

27 / 60

Parakeratinized epithelium is found in:

a. Vestibular fornix.

b. Ventral surface of tongue.

c. Gingiva.

d. Floor of the mouth.

28 / 60

The sulcular epithelium:

a. Is keratinized.

b. Is nonkeratinized.

c. Has thick epithelial layer.

d. Has long epithelial ridges.

29 / 60

The spirilla bacteria Trepnema pallida causes:

a. Tuberculosis

b. Syphilis

c. Pneumonia

d. Abscesses

30 / 60

Larges amount of saliva is produced by :

a. Parotid glands

b. Von Ebner glands

c. Submandibular glands

d. Sublingual glands

31 / 60

A node of Ranvier is?

a. A constriction of the axon

b. Characteristic of unmyelinated fibers

c. A nerve receptor

d. A junction between two schwann cells

32 / 60

Salivary glands are not found in :

a. Anterior part of the hard palate

b. In mandible posterior to the 3rd molar

c. Nasopalatine canal

d. Posterior part of the hard palate

33 / 60

The mode of attachment of the junctional epithelium is:

a. Odland's bodies.

b. Basement membrane.

c. Enamel cuticle.

d. Basal lamina & hemidesmosome.

34 / 60

The mucosa of the dorsal surface of the tongue is:

a. Masticatory mucosa.

b. Spesialized mucosa.

c. Smooth surface.

d. Linning mucosa.

35 / 60

Parasites are types of:

a. Nonpathogenic bacteria

b. Pathogenic virus

c. Pathogenic bacteria

d. Disease

36 / 60

ទីតាំងរបស់ Pharyngeal tonsil គឺៈ

a. នៅលើ Larynx

b. នៅលើ Palate

c. នៅខាងលើនិងខាងក្រោយកន្លែងបត់នៃរន្ធច្រមុះទៅក្នុង Nasopharynx

d. នៅលើ Pharynx

37 / 60

Stenon’s duct is of:

a. Sub-lingual gland

b. Sub-mandibular gland

c. Minor gland

d. Parotide gland

38 / 60

Which these is a common problem with tonsils:

a. They make an infection worse

b. They become swollen

c. They can become infected themselves

d. They become swollen and They can become infected themselves

39 / 60

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Which is not true about taste buds:

a. Nerve fibers end in contact with the sensory cells in the taste buds.

b. Taste buds extend from the basal lamina to the surface of epithelium.

c. 10 to 20 neuroepithelial cells are the receptors of taste stimuli in a taste bud.

d. The supporting cells of a taste bud carry taste hairs.

40 / 60

Diskeratosis គឺជាៈ

a. Abnormality of orientation and development of epithelial cells.

b. Abnormality of orientation and cells mitosis.

c. Abnormality of structure and development of epithelial cells.

d. Abnormality of migration and cells mitosis.

41 / 60

The sour taste come from:

a. Sodium chloride

b. All the answers in this question are incorrect

c. Amino acids

d. Citric acids

42 / 60

Myoepithelial cells are present in :

a. Striate duct

b. Intercalated duct and terminal duct

c. Mucous cells

d. Serous cells

43 / 60

Stratum germinativum of the oral epithelium is the term given to?

a. Spinous cells and granular cells

b. Basal cell layer

c. Granular cell layer

d. Basal cells and parabasal spinous cslls

44 / 60

Displasia គឺជា៖

a. Disorder of cell in mitosis

b. Disorder of cell structure formation

c. Disorder of cell in migration

d. Disorder of cell distribution

45 / 60

Labial and buccal miner salivary glands are:

a. Purely serous

b. All the answers in this question are incorrect

c. Purely mucous

d. Mixed

46 / 60

Bartholin’s duct is the name of :

a. Parotid duct

b. Submandibular duct

c. Lacrimal duct

d. Sublingual duct

47 / 60

Keratohyaline granules are found in?

a. Stratum basale

b. Prickle cell layer

c. Stratum granulosum

d. Stratum spinosum

48 / 60

The parotid glands open through the :

a. Blandin’s duct

b. Bartholin’s duct

c. Wharton’s duct

d. Stensen’s duct

49 / 60

Which of the following represents the correct innervation of fungiform papilla?:

a. Glossopharyngeal nerve.

b. Chorda tympani.

c. Facial nerve.

d. Trigeminal nerve.

50 / 60

The structure of the oral mucosa is:

a. Mucosa & submucosa.

b. Epithelium, lamina propria and muscular layer.

c. Epithelium, lamina propria and basement membrane.

d. Epithelium and basement membrane.

51 / 60

Intercalated duct is :

a. a duct from a paritide gland

b. a duct from a lumen

c. a duct from a salivery gland

d. a duct from acinus

52 / 60

The connective tissue of the gingiva is known as the?

a. Lamina dura

b. Fibroblasts

c. Lamina propria

d. Dental cuticle

53 / 60

The mushroom shaped papillae on the tongue are called:

a. Foliate

b. Circumvallate

c. Fungiform

d. Filliform

54 / 60

Facial artery is the branch of the:

a. Internal carotid artery

b. External carotid artery

c. Superficial temporal

55 / 60

20 Which of the following contributes to the reddish coloration of the vermilion border?:

a. Thichness of oral epithelium.

b. Epithelial keratinization.

c. Existance of high number of langerhans cells.

d. Vascularity of the lamina propria.

56 / 60

A disease that is transmitted from one person to another by contact is said to be:

a. Communicable

b. Occupational

c. Chronic

d. Congenital

57 / 60

Intermediate layer មាននៅក្នុងៈ

a. Orthokeratinized epithelium

b. Nonkeratinized epithelium

c. Parakeratinized epithelium

d. Keratinized epithelium

58 / 60

The most common cell in connective tissue proper is the?

a. Macrophage

b. Mast cell

c. Lymphocyte

d. Fibroblast

59 / 60

Granular layer មាននៅក្នុងៈ

a. Non-keratinized epithelium

b. Para-keratinized epithelium

c. Keratinized, Para-keratinized and Ortho-keratinized epithelium

d. Keratinized epithelium

60 / 60

Masticatory mucosa in the oral cavity covers the?

a. Floor of the mouth and soft palate

b. Lip and cheek

c. Alveolar mucosa and vestibular fornix

d. Gingiva and hard palate

Your score is

The average score is 78%

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និស្សិតអាចប្រាប់មកកាន់ពួកយើងបានដើម្បីកែកំហុស ឬអំពីបញ្ហាដោយអចេតនាណាមួយដែលកើតមានកំឡុងពេលធ្វើតេស្ត