Oral Histology Test

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Oral Histology Test

1 / 60

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

a. Gingiva.

b. Alveolar mucosa.

c. Buccal mucosa.

d. Floor of the mouth.

2 / 60

Bacteria that cause disease are called:

a. Nonpathogenic

b. Saprophytes

c. Pathogenic

d. Protozoa

3 / 60

Buccal mucosa is?

a. Keratinized

b. Para keratinized

c. Non- keratinized

d. Ortho keratinized

4 / 60

The lymph nodes មានតួនាទី :

a. ច្រោះ Toxic products

b. ច្រោះ Proteins

c. ច្រោះ Glucose

d. ច្រោះ Lipids

5 / 60

Lamina densa of the gingival basement membrane is rich in?

a. Type IV collagen

b. Type I collagen

c. Type III collagen

d. Type I and II collagen

6 / 60

នៅក្នុងមាត់ មាន Tosils អ្វីខ្លះ:

a. All the answers in this question are correct

b. Palatine tonsils and Lingual tonsil

c. Tubal tonsil

d. Pharyngeal tonsil

7 / 60

Stenon’s duct is of:

a. Parotide gland

b. Sub-mandibular gland

c. Minor gland

d. Sub-lingual gland

8 / 60

B-cells ( lumphocytes ) can?

a. Suppress T-cells

b. Give rise to plasma cells

c. Kill other cells

d. Secrete interferon

9 / 60

The mode of attachment of the junctional epithelium is:

a. Basement membrane.

b. Odland's bodies.

c. Enamel cuticle.

d. Basal lamina & hemidesmosome.

10 / 60

Keratohyalin granules are present in

a. Basal layer and prickle cell layer

b. Cornified layer

c. Basement membrane

d. Granular layer and prickle cell layer

11 / 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.

12 / 60

A sign of bacterial infection is:

a. Parasites

b. A cold

c. Pus

d. Bleeding

13 / 60

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

a. Chronic

b. Communicable

c. Congenital

d. Occupational

14 / 60

Non keratinized epithelium is found over?

a. Attached gingiva

b. Free gingiva

c. Gingival sulcus

d. Interdental papilla

15 / 60

Hyperplasia គឺជា៖

a. Increase in cell number of an organ or tissue

b. Decrease in cell number of an organ

c. Increase in size of an organ or tissue

d. Decrease in size of an organ

16 / 60

The taste buds are rubbed off and replaced every:

a. 7-10 days

b. Day

c. 30 days

d. Year

17 / 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:

a. Fungiform.

b. Circumvallate.

c. Filliform.

d. Folliate.

18 / 60

Vesicle គឺជា

a. ពងទឹក

b. ពងខ្ទុះ

c. ពងទឹកលាយខ្ទុះ

d. ពងទឹកលាយឈាម

19 / 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

20 / 60

Endothelium and mesothelium form cellular membranes which have the same histologic structure as?

a. Simple columnar epithelium

b. Simple squamous epithelium

c. Stratified squamous epithelium

d. Stratified cuboidal epithelium

21 / 60

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

a. Is impermeable to dyes and fluids.

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

c. Can migrate coronally.

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

22 / 60

Specialized cells stem from

a. Basement membrane

b. Basal layer and prickle cell layer

c. Granular layer

d. Cornified layer

23 / 60

Vesicle 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

24 / 60

Granular cell tumors of the adult is commonly seen on?

a. Gingiva

b. Upper lip

c. Tongue

d. Lower lip

25 / 60

Healthy line is represented in:

a. Free gingival groove.

b. Mucogingival junction.

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

d. Junction of the buccal and labial mucosa.

26 / 60

The lymph nodes គឺជា bean-shaped bodies នៅជាក្រុមតាមបណ្តោយ:

a. Veins

b. Capillary

c. Connective Lymphatic vessels

d. Arteries

27 / 60

What is a secretory cell in oral cavity:

a. Cell producing gastric acid

b. Cell producing histamine

c. Cell producing hormone

d. Cell producing saliva

28 / 60

Disease in plant or animal tissue is caused by:

a. Saprophytes

b. Nonpathogenic bacteria

c. Pathogenic bacteria

d. Acidophilus

29 / 60

The basket cells are also known as :

a. Endothelial cells

b. All the answers in this question are incorrect

c. Parenchymal cells

d. Myoepithelial cells

30 / 60

The structure of the oral mucosa is:

a. Epithelium, lamina propria and muscular layer.

b. Epithelium and basement membrane.

c. Epithelium, lamina propria and basement membrane.

d. Mucosa & submucosa.

31 / 60

Stratum granulosum is not present in?

a. Sulcular epithelium

b. Hyper parakeratosis

c. Hyper orthokeratosis

d. Non keratinized epithelium

32 / 60

Which of the following regions has a nonkeratinized epithelium and is loosely attached to the underlying structures?:

a. Attached gingiva.

b. Vestibular fornix.

c. Buccal mucosa.

d. Hard palate.

33 / 60

The mucous membrane of cheek and lips?

a. All the answers in this question are incorrect

b. A and B are correct

c. It attached to orbicularis oris in lips

d. It attached to buccinators muscle in cheek

34 / 60

The sulcular epithelium:

a. Is nonkeratinized.

b. Has thick epithelial layer.

c. Is keratinized.

d. Has long epithelial ridges.

35 / 60

Granular layer មាននៅក្នុងៈ

a. Para-keratinized epithelium

b. Keratinized epithelium

c. Non-keratinized epithelium

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

36 / 60

Which of the following mucosa has a nonkeratinized epithelium :

a. Mucosa of the floor of the mouth.

b. Attached gingiva.

c. Palatal mucosa.

d. Free gingiva.

37 / 60

Facial artery is the branch of the:

a. Internal carotid artery

b. External carotid artery

c. Superficial temporal

38 / 60

The floor of the mouth is lined by:

a. Linning mucosa firmly attached.

b. Linning mucosa loosely attached.

c. Masticatory mucosa.

d. Specialized mucosa.

39 / 60

Which these is a common problem with tonsils:

a. They become swollen and They can become infected themselves

b. They can become infected themselves

c. They become swollen

d. They make an infection worse

40 / 60

The onecelled microorganisms also known as germs or microbes are:

a. Bacteria

b. Viruses

c. Cilia

d. Fungi

41 / 60

The tonsillar ring or Waldeyer’s ring cosists of:

a. The lingual tonsil

b. The tonsil

c. The adenoid

d. All the answers in this question are correct

42 / 60

ទីតាំងរបស់ Pharyngeal tonsil គឺៈ

a. នៅលើ Palate

b. នៅលើ Pharynx

c. នៅខាងលើនិងខាងក្រោយកន្លែងបត់នៃរន្ធច្រមុះទៅក្នុង Nasopharynx

d. នៅលើ Larynx

43 / 60

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

a. IV

b. I

c. II

d. III

44 / 60

Which of the following is purely mucous :

a. Posterior lingual mucous glands

b. Palatine glands

c. Glossopalatine glands

d. All the answers in this question are correct

45 / 60

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

a. Submandibular gland

b. Von Ebner’s gland

c. Sublingual gland

d. Lacrimal gland

46 / 60

Diskeratosis គឺជាៈ

a. Abnormality of migration and cells mitosis.

b. Abnormality of orientation and development of epithelial cells.

c. Abnormality of orientation and cells mitosis.

d. Abnormality of structure and development of epithelial cells.

47 / 60

The total volume of saliva secreted daily is :

a. 2 litres

b. 1.5 litres

c. 3 litres

d. 750 ml

48 / 60

The immunoglobulin present in saliva is :

a. IgM

b. IgE

c. IgG

d. IgA

49 / 60

Which these may be a symptom of tonsillitis:

a. Sore throat

b. Fever

c. Swollen lymph nodes in the neck

d. All the answers in this question are correct

e. Bad breath

50 / 60

Glands are classified based on?

a. Branching pattern of the ducts

b. Their secretory product

c. All the answers in this question are correct

d. Made of secretion

51 / 60

The total amount of saliva secreted by all the salivary glands about 60% is secreted by :

a. Sublingual glands

b. Submandibular glands

c. All the answers in this question are incorrect

d. Parotid glands

52 / 60

Atrophy is?

a. Acute inflammation

b. Chronic inflammation

c. Lack of nutrition for cells

d. Lack of oxygen for cells

53 / 60

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

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

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

c. Its epithelial cells are keratinized stratified squamous.

d. It shifts apically with age.

54 / 60

Lumen is:

a. a central opening of an oral cavity

b. a central opening of a tooth

c. a central opening of a gland

d. a cental opening of an acini

55 / 60

Keratinized epithelium differs from nonkeratinized epithelium in that:

a. It contains granular cell layer.

b. No tonofilaments are found in it.

c. Contain a higher glycogen content.

d. It does not contain basal lamina.

56 / 60

Wharton’s duct is of:

a. Sub-lingual gland

b. Minor gland

c. Parotide gland

d. Sub-mandibular gland

57 / 60

Labial and buccal miner salivary glands are:

a. Purely mucous

b. Purely serous

c. Mixed

d. All the answers in this question are incorrect

58 / 60

The mucosa of the dorsal surface of the tongue is:

a. Smooth surface.

b. Masticatory mucosa.

c. Linning mucosa.

d. Spesialized mucosa.

59 / 60

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Which is not true about taste buds:

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

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

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

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

60 / 60

All of the following is lined by stratified squamous epithelium except?

a. Oropharynx

b. Lips

c. Tongue

d. Roof of the soft plate

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និស្សិតអាចប្រាប់មកកាន់ពួកយើងបានដើម្បីកែកំហុស ឬអំពីបញ្ហាដោយអចេតនាណាមួយដែលកើតមានកំឡុងពេលធ្វើតេស្ត