Oral Histology Test

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Oral Histology Test

1 / 60

Taste buds are in

a. Teeth

b. Soft palate

c. Hard palate

d. Tongue

2 / 60

Parakeratinized epithelium is found in:

a. Vestibular fornix.

b. Gingiva.

c. Ventral surface of tongue.

d. Floor of the mouth.

3 / 60

ទីតាំងរបស់ Tubal tonsil គឺៈ

a. នៅលើ Larynx

b. នៅលើ Palate

c. នៅខាងក្រោយនៃ opening of Eustachian tube គឺនៅក្នុង Nasopharynx

d. នៅលើ Pharynx

4 / 60

Masticatory mucosa has:

a. Elastic fibers in its blood vessels wall.

b. Stratum corneum.

c. Elastic fibers in its lamina propria.

d. No connective tissue papillae.

5 / 60

The normal P^Hof saliva is about :

a. 8.5

b. 5.5

c. 7.5

d. 9.5

6 / 60

Glands are classified based on?

a. Branching pattern of the ducts

b. All the answers in this question are correct

c. Made of secretion

d. Their secretory product

7 / 60

Keratohyalin granules are present in:

a. Basal layer and prickle cell layer

b. Cornified layer

c. Granular layer and prickle cell layer

d. Basement membrane

8 / 60

Supporting cells of taste buds are called as?

a. Von Ebner cells

b. Sustenticular cells

c. Acini

d. Taste cells

9 / 60

The mode of attachment of the junctional epithelium is:

a. Basement membrane.

b. Enamel cuticle.

c. Basal lamina & hemidesmosome.

d. Odland's bodies.

10 / 60

The most common malignancy found in the oral cavity is :

a. Transitional cell carcinoma

b. Adenocarcinoma

c. Basal cell carcinoma

d. Squamous cell carcinoma

11 / 60

The total amount of saliva secreted by all the salivary glands about 30% is secreted by the :

a. All the answers in this question are incorrect

b. Submandibular gland

c. Sublingual gland

d. Parotid gland

12 / 60

Basement membrane នៅចន្លោះ:

a. Lamina propria and submucosa

b. Epithelium and submucosa

c. Epithelium and Bone

d. Epithelium and lamina propria

13 / 60

Taste buds មិនមាននៅក្នុង៖

a. Foliate papillae

b. Fungiform papillae

c. Circumvallate papillae

d. Filiform papillae

14 / 60

The mushroom shaped papillae on the tongue are called:

a. Filliform

b. Circumvallate

c. Fungiform

d. Foliate

15 / 60

Sublingual glands is a :

a. Mucous gland

b. Present in root of the tongue

c. Mixed glands

d. Serous gland

16 / 60

Masticatory mucosa is?

a. Non keratinized

b. Para keratinized

c. Sub keratinized

d. Ortho keratinized

17 / 60

Which of the following is a transiant cell in the oral epithelium:

a. Langerhans cell.

b. Lymphocyte.

c. Merkel cell.

d. Melanocyte.

18 / 60

Specialized cells migrate

a. to the upper layers

b. to the lower layer

c. to basement membrane

d. to lamina propria

19 / 60

Hyperplasia គឺជា៖

a. Increase in size of an organ or tissue

b. Increase in cell number of an organ or tissue

c. Decrease in cell number of an organ

d. Decrease in size of an organ

20 / 60

Which these may be a symptom of tonsillitis:

a. Swollen lymph nodes in the neck

b. All the answers in this question are correct

c. Sore throat

d. Bad breath

e. Fever

21 / 60

Long connective tissue papillae and keratinized epithelium are a feature of these parts of oral mucosa?

a. Hard palate and gingiva

b. Hard and soft palate

c. Buccal and alveolar mucosa

d. Gingiva and alveolar mucosa

22 / 60

Which of the following is purely mucous :

a. All the answers in this question are correct

b. Glossopalatine glands

c. Palatine glands

d. Posterior lingual mucous glands

23 / 60

Disease in plant or animal tissue is caused by:

a. Pathogenic bacteria

b. Saprophytes

c. Nonpathogenic bacteria

d. Acidophilus

24 / 60

Hypertrophy គឺជា៖

a. Increase in cell number of an organ

b. Increase in size of an organ

c. Decrease in size of an organ

d. Decrease in cell number of an organ

25 / 60

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

a. It shifts apically with age.

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

c. Its epithelial cells are keratinized stratified squamous.

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

26 / 60

Which one of the following epithelium is least common?

a. Pseudo stratified columnar ( ciliated )

b. Stratified columnar

c. Transitional

d. Simple columnar

27 / 60

Atrophy គឺជា៖

a. Chronic inflammation

b. Acute inflammation

c. Lack of nutrition for cells

d. Lack of oxygen for cells

28 / 60

Soft palate is?

a. Looser posterior portion of the palate

b. Looser anterior portion of the palate

c. Posterior pillar of tonsils

d. Anterior pillar of tonsils

29 / 60

Which of the following is true of the attachment epithelium?:

a. Can migrate coronally.

b. Its coronal end is found at the bottom of the gingival sulcus.

c. Its apical migration is the major causative factor in active eruption.

d. Is impermeable to dyes and fluids.

30 / 60

Dendritic cell located in the stratified squamous keratinized epithelium of the oral cavity include?

a. Mast cells

b. Myoepithelial cell

c. Melanocytes

d. Keratinocytes

31 / 60

Diskeratosis is?

a. Chronic inflammation

b. Acute inflammation

c. Increasing in the number of cells

d. Precancerous state

32 / 60

Tongue papillae responsible for bitter taste sensation:

a. Filliform papillae.

b. Foliate papillae.

c. Circumvallate papillae.

d. Fungiform papillae.

33 / 60

The sweet taste come from:

a. Alcohols

b. Amino acids

c. Sugars

d. All the answers in this question are correct

34 / 60

B-cells ( lumphocytes ) can?

a. Secrete interferon

b. Kill other cells

c. Give rise to plasma cells

d. Suppress T-cells

35 / 60

Bartholin’s duct is of:

a. Minor gland

b. Sub-lingual gland

c. Parotide gland

d. Sub-mandibular gland

36 / 60

Lamina densa of the gingival basement membrane is rich in?

a. Type IV collagen

b. Type I collagen

c. Type I and II collagen

d. Type III collagen

37 / 60

Which of the following serves as a source of the cells which form the attachment epithelium?:

a. Dental sac.

b. Reduced enamel epithelium & gingiva.

c. Vestibular lamina.

d. Enamel cuticle.

38 / 60

The most common cell in connective tissue proper is the?

a. Lymphocyte

b. Macrophage

c. Mast cell

d. Fibroblast

39 / 60

Basement membrane?

a. Contains lamina lucida and lamina dura

b. Consists lurati hyaline granules

c. Consists of lamina densa and lamina lucida

d. Consists of desmosomes and hemidesmosomes

40 / 60

ចំពោះមនុស្សដែលមានសុខភាពល្អម្នាក់ lymph nodes ជាធម្មតា :

a. Free

b. Soft

c. Small

d. All the answers in this question are correct

41 / 60

Which of the following papillae of the tongue do not contain taste buds:

a. Filliform.

b. Foliate.

c. Fungiform.

d. Vallate.

42 / 60

Vesicles or Bullae of the mucous membrane or skin are seen in all the following except?

a. A granulocytosis

b. Pemphigus

c. Herpes simplex

d. Herpes zoster

43 / 60

Sulcular epithelium is formed of:

a. Orthokeratinized stratified squamous epithelium.

b. Columnar epithelium.

c. Nonkeratinized stratified squamous epithelium.

d. Parakeratinized stratified squamous epithelium.

44 / 60

Stenon’s duct is of:

a. Sub-lingual gland

b. Parotide gland

c. Minor gland

d. Sub-mandibular gland

45 / 60

Lumen is:

a. a cental opening of an acini

b. a central opening of an oral cavity

c. a central opening of a gland

d. a central opening of a tooth

46 / 60

Granular cell myoblastoma of tongue is?

a. Developmental anomaly of the tongue.

b. Malignant tumor of the tongue

c. Benign tumor

d. Lymphatic enlargement of the tongue

47 / 60

Which of the following appears to play an important role in attachment of its cells:

a. Keratohyaline granules.

b. Glycogen contents.

c. Lysosomes.

d. Desmosomes.

48 / 60

The p^H of whole saliva is :

a. 6.7 – 7.4

b. 1.2 – 2.4

c. 7.0 – 8.2

d. 3.0 – 5.6

49 / 60

In which area the connective tissue papillae are long & numerous?:

a. Gingiva.

b. Buccal mucosa.

c. Floor of the mouth.

d. Alveolar mucosa.

50 / 60

Which these is a common problem with tonsils:

a. They can become infected themselves

b. They become swollen

c. They become swollen and They can become infected themselves

d. They make an infection worse

51 / 60

Which of the following is true of the sulcular epithelium:

a. Has submucosa.

b. Contain connective tissue papillae.

c. Consists of keratinized epithelium.

d. Is nonkeratinized.

52 / 60

A cyst occurring under the tongue caused by obstruction of salivary gland duct is called a :

a. Follicular cyst

b. Dermoid cyst

c. Dentigerous cyst

d. Ranula

53 / 60

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Fungiform papillae:

a. Carry taste buds.

b. Have a stratum corneum.

c. Have a lamina propria which is poorly vascularized.

d. Are seen as white spots.

54 / 60

Technical term for bacteria that live on dead matter is:

a. Parasites

b. Saprophytes

c. Flagella

d. Viruses

55 / 60

Non keratinized epithelium is found over?

a. Gingival sulcus

b. Attached gingiva

c. Free gingiva

d. Interdental papilla

56 / 60

Bartholin’s duct drains the:

a. Lacrimal gland

b. Parotid

c. Sublingual gland

d. Submandibular gland

57 / 60

Circumvallate papillae are supplied by?

a. Glossopharyngeal nerve

b. Hypoglossal nerve

c. Vagus

d. Lingual nerve

58 / 60

Difference between the skin and mucosa of cheek is?

a. Thick lamina propria on skin of cheek

b. Thin lamina and non keratinized mucosa of cheek

c. Keratinized mucosa of cheek

d. Rete pegs

59 / 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 less number of sebaceous glands

d. It contains more of sebaceous glands

60 / 60

The gland’s present in between the muscle fibres of the tongue below vallate papillae are:

a. Lacrimal gland

b. Submandibular gland

c. Sublingual gland

d. Von Ebner’s gland

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និស្សិតអាចប្រាប់មកកាន់ពួកយើងបានដើម្បីកែកំហុស ឬអំពីបញ្ហាដោយអចេតនាណាមួយដែលកើតមានកំឡុងពេលធ្វើតេស្ត