Oral Histology Test

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Oral Histology Test

1 / 60

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

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

b. Is impermeable to dyes and fluids.

c. Can migrate coronally.

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

2 / 60

B-cells ( lumphocytes ) can?

a. Kill other cells

b. Secrete interferon

c. Give rise to plasma cells

d. Suppress T-cells

3 / 60

Keratinized epithelium differs from nonkeratinized epithelium in that:

a. It does not contain basal lamina.

b. No tonofilaments are found in it.

c. It contains granular cell layer.

d. Contain a higher glycogen content.

4 / 60

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

a. Filliform

b. Fungiform

c. Foliate

d. Circumvallate

5 / 60

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

a. I

b. IV

c. II

d. III

6 / 60

Healthy line is represented in:

a. Mucogingival junction.

b. Free gingival groove.

c. Junction of the palatine gingiva and the lateral surface of the palate.

d. Junction of the buccal and labial mucosa.

7 / 60

When do tonsils or adenoids need to be removed:

a. All the answers in this question are incorrect

b. When a child is 5 years old

c. When a child is having learning problems

d. When a child is 10 years old

8 / 60

Epithelium of oral mucous membrane is?

a. Only parakeratinized

b. Keratinized

c. Non keratinized

d. Ortho,Para and nonkeratinized

9 / 60

Keratohyaline granules in epithelial cells of keratinized mucosa are associated with:

a. Basal cell layer.

b. Stratum granulosum.

c. Prickle cell layer.

d. The tonofilaments.

10 / 60

Which of the following is true of the sulcular epithelium:

a. Is nonkeratinized.

b. Has submucosa.

c. Contain connective tissue papillae.

d. Consists of keratinized epithelium.

11 / 60

The mucogingival junction is the junction of:

a. Palatine gingival & rougae zone.

b. Sulcular epithelium & free gingiva.

c. Alveolar mucosa and attached gingiva.

d. Sulcular epithelium & free gingiva.

12 / 60

The oral mucosa ចែកចេញជា:

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

b. បីស្រទាប់ epithelium, connective tissue and lamina propria

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

d. ពីរស្រទាប់ epithelium and connective tissue

13 / 60

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

a. Lacrimal gland

b. Sublingual gland

c. Submandibular gland

d. Von Ebner’s gland

14 / 60

Bulla

a. Vesicle

b. large pustule

c. large lesion

d. Large vesicles that are confluent

15 / 60

Which of the following is true regarding the dentogingival junction?:

a. It moves occlusally with age.

b. It moves apically with age.

c. It is derived entirely from ectomesenchyme.

d. Contains clear submucosa.

16 / 60

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

a. Congenital

b. Occupational

c. Communicable

d. Chronic

17 / 60

Granular cell myoblastoma of tongue is?

a. Lymphatic enlargement of the tongue

b. Benign tumor

c. Developmental anomaly of the tongue.

d. Malignant tumor of the tongue

18 / 60

The onecelled microorganisms also known as germs or microbes are:

a. Viruses

b. Cilia

c. Bacteria

d. Fungi

19 / 60

The somatic nervous system is part of the:

a. Sympathetic nervous system

b. Parasympathetic nervous system

c. All the answers in this question are incorrect

d. Autonomic nervous system

20 / 60

Glands emptying the circumvalate trough are the:

a. Mucous and serous mixed glands.

b. Mucous glands.

c. Glands of Nuhn.

d. Serous glands.

21 / 60

The vermilion border requires frequent moistening because?

a. It contains less number of sebaceous glands

b. It contains less number of sweat glands

c. It contains more of sebaceous glands

d. It contains more of sweat glands

22 / 60

The most common malignancy found in the oral cavity is :

a. Adenocarcinoma

b. Squamous cell carcinoma

c. Basal cell carcinoma

d. Transitional cell carcinoma

23 / 60

Which papillae are completely keratinized?

a. Foliate

b. Filliform

c. Fungiform

d. Circumvallate

24 / 60

Which one of the following epithelium is least common?

a. Pseudo stratified columnar ( ciliated )

b. Transitional

c. Stratified columnar

d. Simple columnar

25 / 60

Disease in plant or animal tissue is caused by:

a. Acidophilus

b. Nonpathogenic bacteria

c. Pathogenic bacteria

d. Saprophytes

26 / 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

27 / 60

Submandibular gland is supplied by:

a. Lingual artery

b. Inferior alveolar artery

c. Submandibular artery

d. Facial artery

28 / 60

ទីតាំងរបស់ Tubal tonsil គឺៈ

a. នៅលើ Larynx

b. នៅលើ Pharynx

c. នៅលើ Palate

d. នៅខាងក្រោយនៃ opening of Eustachian tube គឺនៅក្នុង Nasopharynx

29 / 60

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

a. Mast cells

b. Melanocytes

c. Myoepithelial cell

d. Keratinocytes

30 / 60

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

a. Foliate.

b. Fungiform.

c. Vallate.

d. Filliform.

31 / 60

The sour taste come from:

a. Sodium chloride

b. Citric acids

c. Amino acids

d. All the answers in this question are incorrect

32 / 60

Taste buds are in

a. Soft palate

b. Tongue

c. Hard palate

d. Teeth

33 / 60

Cornified layer មាននៅក្នុងៈ

a. Nonkeratinized epithelium

b. Parakeratinized epithelium

c. Keratinized epithelium

d. Orthokeratinized epithelium

34 / 60

Sublingual glands is a :

a. Serous gland

b. Present in root of the tongue

c. Mixed glands

d. Mucous gland

35 / 60

Acantholysis គឺជាៈ

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

b. Destroying desmosome in stratum basal cells

c. Destroying desmosome in stratum spinosum cells

d. Destroying desmosome in stratum granulosome cells

36 / 60

Difference between the skin and mucosa of cheek is?

a. Rete pegs

b. Thin lamina and non keratinized mucosa of cheek

c. Keratinized mucosa of cheek

d. Thick lamina propria on skin of cheek

37 / 60

Atrophy គឺជា៖

a. Lack of nutrition for cells

b. Lack of oxygen for cells

c. Acute inflammation

d. Chronic inflammation

38 / 60

Hyperkeratosis is:

a. Increase in longevity of keratin layer or stratum corneum

b. Increase in size of keratin layer or stratum corneum

c. Increase in wideness of keratin layer or stratum corneum

d. Increase in thickness of keratin layer or stratum corneum

39 / 60

Inflammation of the lips is refered to as?

a. Cheilitis

b. Vincent angina

c. Stomatitis

d. Glossitis migrican

40 / 60

The total volume of saliva secreted daily is :

a. 750 ml

b. 2 litres

c. 1.5 litres

d. 3 litres

41 / 60

Stratum granulosum is not present in?

a. Non keratinized epithelium

b. Hyper orthokeratosis

c. Sulcular epithelium

d. Hyper parakeratosis

42 / 60

Specialized cells stem from

a. Basal layer and prickle cell layer

b. Granular layer

c. Basement membrane

d. Cornified layer

43 / 60

Tonsils are on the back of the throat.Where are the adenoids located:

a. Behind the nose and roof of the mouth

b. All the answers in this question are incorrect

c. Under the tongue

d. In the ears

44 / 60

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

a. Hard and soft palate

b. Gingiva and alveolar mucosa

c. Buccal and alveolar mucosa

d. Hard palate and gingiva

45 / 60

The mode of attachment of the junctional epithelium is:

a. Basal lamina & hemidesmosome.

b. Basement membrane.

c. Odland's bodies.

d. Enamel cuticle.

46 / 60

The lymph nodes មានតួនាទី :

a. ច្រោះ Proteins

b. ច្រោះ Toxic products

c. ច្រោះ Lipids

d. ច្រោះ Glucose

47 / 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

48 / 60

In the tongue bitter taste is more perceived at?

a. Sides

b. Front

c. Back

d. Tip

49 / 60

Non keratinized epithelium is found over?

a. Interdental papilla

b. Free gingiva

c. Gingival sulcus

d. Attached gingiva

50 / 60

The total amount of saliva secreted by all the salivary glands about 5% is secreted by the:

a. Submandibular gland

b. All the answers in this question are incorrect

c. Sublingual gland

d. Parotid gland

51 / 60

Basement membrane នៅចន្លោះ

a. Epithelium and submucosa

b. Epithelium and lamina propria

c. Epithelium and Bone

d. Lamina propria and submucosa

52 / 60

Keratohyaline granules are more evident in?

a. Ortho keratinized

b. Non keratinized

c. Keratinized

d. Para keratinized

53 / 60

Larges amount of saliva is produced by :

a. Submandibular glands

b. Sublingual glands

c. Parotid glands

d. Von Ebner glands

54 / 60

The lymph nodes គឺជា bean-shaped bodies នៅជាក្រុមតាមបណ្តោយ:

a. Veins

b. Capillary

c. Connective Lymphatic vessels

d. Arteries

55 / 60

Lumen is:

a. a central opening of an oral cavity

b. a central opening of a gland

c. a central opening of a tooth

d. a cental opening of an acini

56 / 60

The ducts of glands opening into the floor of the mouth are :

a. Submandibular and Sublingual

b. Submandibular and Parotid

c. Von Ebner

d. Sublingual and Parotid

57 / 60

Which of the following are not usually found in the keratinocytes of the stratum spinosum of keratinized oral epithelium?:

a. Keratohyaline granules.

b. Tonofibrils.

c. Ribosomes.

d. Membrane coating granules.

58 / 60

Partially keratinized papilla is?

a. Foliate

b. Filliform

c. Fungiform

d. Circumvallate

59 / 60

Diskeratosis is?

a. Acute inflammation

b. Precancerous state

c. Chronic inflammation

d. Increasing in the number of cells

60 / 60

Intermediate layer មាននៅក្នុងៈ

a. Keratinized epithelium

b. Nonkeratinized epithelium

c. Parakeratinized epithelium

d. Orthokeratinized epithelium

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និស្សិតអាចប្រាប់មកកាន់ពួកយើងបានដើម្បីកែកំហុស ឬអំពីបញ្ហាដោយអចេតនាណាមួយដែលកើតមានកំឡុងពេលធ្វើតេស្ត