Oral Histology Test

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Oral Histology Test

1 / 60

B-cells ( lumphocytes ) can?

a. Secrete interferon

b. Suppress T-cells

c. Kill other cells

d. Give rise to plasma cells

2 / 60

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

a. Enamel cuticle.

b. Dental sac.

c. Reduced enamel epithelium & gingiva.

d. Vestibular lamina.

3 / 60

Taste buds are in

a. Tongue

b. Hard palate

c. Soft palate

d. Teeth

4 / 60

Granular layer មាននៅក្នុងៈ

a. Para-keratinized epithelium

b. Keratinized epithelium

c. Non-keratinized epithelium

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

5 / 60

Masticatory mucosa is?

a. Non keratinized

b. Para keratinized

c. Sub keratinized

d. Ortho keratinized

6 / 60

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

a. Vallate.

b. Foliate.

c. Filliform.

d. Fungiform.

7 / 60

នៅក្នុងមាត់ មាន Tosils អ្វីខ្លះ:

a. All are corrects

b. Tubal tonsil

c. Pharyngeal tonsil

d. Palatine tonsils and Lingual tonsil

8 / 60

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

a. Granular cell layer

b. Spinous cells and granular cells

c. Basal cells and parabasal spinous cslls

d. Basal cell layer

9 / 60

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

a. Sublingual and Parotid

b. Submandibular and Sublingual

c. Submandibular and Parotid

d. Von Ebner

10 / 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

11 / 60

Wharton’s duct is of:

a. Sub-mandibular gland

b. Sub-lingual gland

c. Minor gland

d. Parotide gland

12 / 60

ទីតាំងរបស់ Lingual tonsil គឺៈ

a. នៅលើ Pharynx

b. នៅលើ Palate

c. នៅលើ Larynx

d. នៅផ្នែកខាងក្រោយបង្អស់នៃអណ្តាត ក្នុងបំពង់ក

13 / 60

What is the end of an axon called:

a. Ganglion

b. Perikaryon

c. Astrocyte

d. Terminal bouton

14 / 60

The most common cell in connective tissue proper is the?

a. Lymphocyte

b. Mast cell

c. Macrophage

d. Fibroblast

15 / 60

The peripheral nervous system includes the:

a. Somatic nervous system

b. Brain

c. Nuclei

d. Spinal cord

16 / 60

ទីតាំងរបស់ Tubal tonsil គឺៈ

a. នៅលើ Larynx

b. នៅខាងក្រោយនៃ opening of Eustachian tube គឺនៅក្នុង Nasopharynx

c. នៅលើ Palate

d. នៅលើ Pharynx

17 / 60

Bacteria that cause disease are called:

a. Pathogenic

b. Nonpathogenic

c. Protozoa

d. Saprophytes

18 / 60

ទីតាំងរបស់ Palatine tonsil គឺៈ

a. ចន្លោះ anterior pillar and posterior pillar

b. នៅលើ Pharynx

c. នៅលើ Palate

d. នៅលើ Larynx

19 / 60

Keratohyalin is found in the?

a. Stratum corneum

b. Hyalin cartilage

c. Stratum reticularis

d. Stratum granulosum

20 / 60

Merkel cells are found in which of the following tissue?

a. Papillary layer of dermis

b. Reticular of dermis

c. Hypodermis

d. Epidermis

21 / 60

Hyperkeratosis is:

a. Increase in thickness of keratin layer or stratum corneum

b. Increase in size of keratin layer or stratum corneum

c. Increase in longevity of keratin layer or stratum corneum

d. Increase in wideness of keratin layer or stratum corneum

22 / 60

Granular cell myoblastoma of tongue is?

a. Developmental anomaly of the tongue.

b. Benign tumor

c. Lymphatic enlargement of the tongue

d. Malignant tumor of the tongue

23 / 60

Healthy line is represented in:

a. Junction of the buccal and labial mucosa.

b. Free gingival groove.

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

d. Mucogingival junction.

24 / 60

The tonsillar lymph node is situated at the level of?

a. Vertebrae

b. Angle of the mandible

c. Jugulodigastric crossing

d. Clavicle

25 / 60

The mucogingival junction is the junction of:

a. Sulcular epithelium & free gingiva.

b. Palatine gingival & rougae zone.

c. Alveolar mucosa and attached gingiva.

d. Sulcular epithelium & free gingiva.

26 / 60

Which these is a common problem with tonsils:

a. They become swollen

b. They make an infection worse

c. They can become infected themselves

d. They become swollen and They can become infected themselves

27 / 60

Soft palate is?

a. Looser anterior portion of the palate

b. Posterior pillar of tonsils

c. Looser posterior portion of the palate

d. Anterior pillar of tonsils

28 / 60

Difference between the skin and mucosa of cheek is?

a. Thin lamina and non keratinized mucosa of cheek

b. Keratinized mucosa of cheek

c. Thick lamina propria on skin of cheek

d. Rete pegs

29 / 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. Parotid gland

c. Sublingual gland

d. Submandibular gland

30 / 60

A sign of bacterial infection is:

a. Bleeding

b. Parasites

c. A cold

d. Pus

31 / 60

Specialized cells stem from:

a. Cornified layer

b. Basal layer and prickle cell layer

c. Granular layer

d. Basement membrane

32 / 60

The normal P^Hof saliva is about :

a. 9.5

b. 7.5

c. 8.5

d. 5.5

33 / 60

Taste buds are in :

a. Tongue

b. Hard palate

c. Teeth

d. Soft palate

34 / 60

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Which is not true about taste buds:

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

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

35 / 60

Which of the following is purely mucous :

a. Posterior lingual mucous glands

b. All the answers in this question are correct

c. Glossopalatine glands

d. Palatine glands

36 / 60

Keratinized epithelium differs from nonkeratinized epithelium in that:

a. Contain a higher glycogen content.

b. It contains granular cell layer.

c. No tonofilaments are found in it.

d. It does not contain basal lamina.

37 / 60

The humans, the lining epithelium of the esophagus is?

a. Transitional

b. Simple columnar

c. Stratified squamous, keratinized

d. Stratified squamous, non-keratinized

38 / 60

Labial and buccal miner salivary glands are:

a. Mixed

b. Purely mucous

c. All the answers in this question are incorrect

d. Purely serous

39 / 60

ទីតាំងរបស់ Pharyngeal tonsil គឺៈ

a. នៅលើ Larynx

b. នៅខាងលើនិងខាងក្រោយកន្លែងបត់នៃរន្ធច្រមុះទៅក្នុង Nasopharynx

c. នៅលើ Pharynx

d. នៅលើ Palate

40 / 60

Hypertrophy គឺជា៖

a. Decrease in cell number of an organ

b. Decrease in size of an organ

c. Increase in cell number of an organ

d. Increase in size of an organ

41 / 60

Masticatory mucosa has:

a. Elastic fibers in its blood vessels wall.

b. No connective tissue papillae.

c. Stratum corneum.

d. Elastic fibers in its lamina propria.

42 / 60

The sulcular epithelium:

a. Has thick epithelial layer.

b. Is keratinized.

c. Has long epithelial ridges.

d. Is nonkeratinized.

43 / 60

Wharton’s duct drains the:

a. Submandibular gland

b. Pancreas

c. Lacrimal gland

d. Parotid

44 / 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

45 / 60

Disease in plant or animal tissue is caused by:

a. Nonpathogenic bacteria

b. Acidophilus

c. Saprophytes

d. Pathogenic bacteria

46 / 60

Specialized cells stem from

a. Basement membrane

b. Granular layer

c. Basal layer and prickle cell layer

d. Cornified layer

47 / 60

The sweet taste come from:

a. Alcohols

b. Amino acids

c. Sugars

d. All the answers in this question are correct

48 / 60

What is a secretory cell in oral cavity:

a. Cell producing histamine

b. Cell producing gastric acid

c. Cell producing hormone

d. Cell producing saliva

49 / 60

Bartholin’s duct is of:

a. Parotide gland

b. Minor gland

c. Sub-mandibular gland

d. Sub-lingual gland

50 / 60

There are————— taste buds ,most of them on the tongue:

a. 100,000

b. 100

c. 1,000

d. 10,000

51 / 60

The papillae lined up in the back of the tongue are called:

a. Filliform

b. Circumvallate

c. Foliate

d. Fungiform

52 / 60

Myoepithelial cell of an acini is:

a. kind of cell in a tonsil

b. kind of cell in a heart

c. kind of cell in a salivery gland

d. kind of contractile cell on an acini

53 / 60

Which of the following is not found in saliva :

a. Bicarbonate

b. Lysozyme

c. Phosphate

d. Triypsine

54 / 60

Basement membrane?

a. Consists lurati hyaline granules

b. Consists of desmosomes and hemidesmosomes

c. Contains lamina lucida and lamina dura

d. Consists of lamina densa and lamina lucida

55 / 60

Secialized cells migrate:

a. to the lower layer

b. to lamina propria

c. to basement membrane

d. to the upper layers

56 / 60

Atrophy is?

a. Lack of nutrition for cells

b. Lack of oxygen for cells

c. Acute inflammation

d. Chronic inflammation

57 / 60

Von Ebner’s salivary gland is:

a. Sub-lingual gland

b. Parotide gland

c. Sub-mandibular gland

d. Minor gland

58 / 60

Minor salivary glands are present in the submucosa throughout the oral mucosa except the?

a. Tongue and soft palate

b. Gingiva and anterior part of hard palate

c. Lip and posterior third of the hard palate

d. Retromolar area and hard palate

59 / 60

Hypertrophy is?

a. Decrease in size of an organ

b. Increase in cell number of an organ

c. Increase in size of an organ

d. Decrease in cell number of an organ

60 / 60

Inflammation of the lips is refered to as?

a. Cheilitis

b. Stomatitis

c. Vincent angina

d. Glossitis migrican

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និស្សិតអាចប្រាប់មកកាន់ពួកយើងបានដើម្បីកែកំហុស ឬអំពីបញ្ហាដោយអចេតនាណាមួយដែលកើតមានកំឡុងពេលធ្វើតេស្ត