Oral Histology Test

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Oral Histology Test

1 / 60

Keratohyaline granules are more evident in?

a. Keratinized

b. Para keratinized

c. Non keratinized

d. Ortho keratinized

2 / 60

Which of the following conditions present as complete vesicle?

a. Dermatitis

b. Pemphigus

c. Aphthous ulcer

d. Pyostomatitis

3 / 60

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Which is not true about taste buds:

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

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

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

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

4 / 60

Parakeratinized epithelium is found in:

a. Gingiva.

b. Vestibular fornix.

c. Floor of the mouth.

d. Ventral surface of tongue.

5 / 60

The thinnest epithelium of oral cavity is found in the?

a. Lingual gingiva

b. Sublingual mucosa (floor of mouth)

c. Buccal gingiva

d. Oral surface of lip

6 / 60

ទីតាំងរបស់ Tubal tonsil គឺៈ

a. នៅលើ Pharynx

b. នៅលើ Palate

c. នៅលើ Larynx

d. នៅខាងក្រោយនៃ opening of Eustachian tube គឺនៅក្នុង Nasopharynx

7 / 60

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

a. Submandibular and Sublingual

b. Von Ebner

c. Submandibular and Parotid

d. Sublingual and Parotid

8 / 60

The parotid glands open through the :

a. Stensen’s duct

b. Wharton’s duct

c. Blandin’s duct

d. Bartholin’s duct

9 / 60

The onecelled microorganisms also known as germs or microbes are:

a. Bacteria

b. Fungi

c. Cilia

d. Viruses

10 / 60

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

a. Thichness of oral epithelium.

b. Vascularity of the lamina propria.

c. Existance of high number of langerhans cells.

d. Epithelial keratinization.

11 / 60

Diskeratosis is?

a. Acute inflammation

b. Increasing in the number of cells

c. Chronic inflammation

d. Precancerous state

12 / 60

Taste buds are in

a. Teeth

b. Tongue

c. Hard palate

d. Soft palate

13 / 60

The mode of attachment of the junctional epithelium is:

a. Basal lamina & hemidesmosome.

b. Odland's bodies.

c. Basement membrane.

d. Enamel cuticle.

14 / 60

Which one of the following epithelium is least common?

a. Transitional

b. Stratified columnar

c. Pseudo stratified columnar ( ciliated )

d. Simple columnar

15 / 60

Larges amount of saliva is produced by :

a. Von Ebner glands

b. Sublingual glands

c. Parotid glands

d. Submandibular glands

16 / 60

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

a. Lysosomes.

b. Desmosomes.

c. Glycogen contents.

d. Keratohyaline granules.

17 / 60

Lumen is:

a. a central opening of a tooth

b. a central opening of a gland

c. a cental opening of an acini

d. a central opening of an oral cavity

18 / 60

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

a. Lymphocyte.

b. Merkel cell.

c. Langerhans cell.

d. Melanocyte.

19 / 60

ទីតាំងរបស់ Pharyngeal tonsil គឺៈ

a. នៅលើ Palate

b. នៅលើ Pharynx

c. នៅលើ Larynx

d. នៅខាងលើនិងខាងក្រោយកន្លែងបត់នៃរន្ធច្រមុះទៅក្នុង Nasopharynx

20 / 60

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

a. Tongue

b. Roof of the soft plate

c. Oropharynx

d. Lips

21 / 60

How many neurones are in the body of man:

a. 10,000,000,000

b. 10,000,000

c. 10,000

d. 10,000,000,000,000

22 / 60

The most important indication of malignant lesion is?

a. Tooth resorption

b. Teeth movement

c. Pain

d. Paresthesia

23 / 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

24 / 60

Soft palate is?

a. Anterior pillar of tonsils

b. Posterior pillar of tonsils

c. Looser posterior portion of the palate

d. Looser anterior portion of the palate

25 / 60

Keratinized epithelium differs from nonkeratinized epithelium in that:

a. It does not contain basal lamina.

b. No tonofilaments are found in it.

c. Contain a higher glycogen content.

d. It contains granular cell layer.

26 / 60

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

a. Basal cells and parabasal spinous cslls

b. Spinous cells and granular cells

c. Basal cell layer

d. Granular cell layer

27 / 60

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

a. Submandibular gland

b. Parotid gland

c. All the answers in this question are incorrect

d. Sublingual gland

28 / 60

Hypertrophy is?

a. Decrease in size of an organ

b. Decrease in cell number of an organ

c. Increase in size of an organ

d. Increase in cell number of an organ

29 / 60

Taste buds មិនមាននៅក្នុង៖

a. Fungiform papillae

b. Filiform papillae

c. Foliate papillae

d. Circumvallate papillae

30 / 60

Circumvallate papillae are supplied by?

a. Lingual nerve

b. Glossopharyngeal nerve

c. Hypoglossal nerve

d. Vagus

31 / 60

Non keratinized epithelium is found over?

a. Attached gingiva

b. Interdental papilla

c. Free gingiva

d. Gingival sulcus

32 / 60

Technical term for bacteria that live on dead matter is:

a. Parasites

b. Saprophytes

c. Viruses

d. Flagella

33 / 60

The sour taste come from:

a. All the answers in this question are incorrect

b. Citric acids

c. Amino acids

d. Sodium chloride

34 / 60

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

a. Chorda tympani.

b. Glossopharyngeal nerve.

c. Trigeminal nerve.

d. Facial nerve.

35 / 60

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

a. Circumvallate

b. Filliform

c. Foliate

d. Fungiform

36 / 60

Granular cell tumors of the adult is commonly seen on?

a. Tongue

b. Upper lip

c. Gingiva

d. Lower lip

37 / 60

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

a. 1,000

b. 100

c. 10,000

d. 100,000

38 / 60

Acantholysis គឺជាៈ

a. Destroying desmosome in stratum spinosum cells

b. Destroying desmosome in stratum basal cells

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

d. Destroying desmosome in stratum granulosome cells

39 / 60

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

a. Plasma cell.

b. Keratinocyte.

c. Fibroblast.

d. Osteoblasts.

40 / 60

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

a. Enamel cuticle.

b. Reduced enamel epithelium & gingiva.

c. Dental sac.

d. Vestibular lamina.

41 / 60

Difference between the skin and mucosa of cheek is?

a. Rete pegs

b. Thick lamina propria on skin of cheek

c. Thin lamina and non keratinized mucosa of cheek

d. Keratinized mucosa of cheek

42 / 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

43 / 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. Circumvallate.

b. Filliform.

c. Fungiform.

d. Folliate.

44 / 60

Granular layer មាននៅក្នុងៈ

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

b. Keratinized epithelium

c. Non-keratinized epithelium

d. Para-keratinized epithelium

45 / 60

Which of the following is found in the cerebellum:

a. Neuroglia

b. Basket cells

c. Ganglion

d. Schwann cells

46 / 60

The three laterally paired major salivary glands are located :

a. In neck

b. Extra orally

c. Intra orally

d. In tongue

47 / 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

48 / 60

Excretory duct is

a. a duct from a striated ducts

b. a duct from a parotide gland

c. a duct from a sublimgual gland

d. a duct from a submandibular gland

49 / 60

Tongue papillae responsible for bitter taste sensation:

a. Fungiform papillae.

b. Filliform papillae.

c. Foliate papillae.

d. Circumvallate papillae.

50 / 60

Bartholin’s duct drains the:

a. Parotid

b. Lacrimal gland

c. Submandibular gland

d. Sublingual gland

51 / 60

The most common cell in connective tissue proper is the?

a. Mast cell

b. Fibroblast

c. Lymphocyte

d. Macrophage

52 / 60

Specialized cells stem from:

a. Basement membrane

b. Cornified layer

c. Granular layer

d. Basal layer and prickle cell layer

53 / 60

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

a. Herpes simplex

b. A granulocytosis

c. Herpes zoster

d. Pemphigus

54 / 60

Bulla:

a. large lesion

b. Vesicle

c. large pustule

d. Large vesicles that are confluent

55 / 60

The connective tissue of the gingiva is known as the?

a. Lamina propria

b. Dental cuticle

c. Fibroblasts

d. Lamina dura

56 / 60

Sublingual glands is a :

a. Mucous gland

b. Present in root of the tongue

c. Mixed glands

d. Serous gland

57 / 60

Buccal mucosa is?

a. Keratinized

b. Para keratinized

c. Non- keratinized

d. Ortho keratinized

58 / 60

Supporting cells of taste buds are called as?

a. Taste cells

b. Sustenticular cells

c. Acini

d. Von Ebner cells

59 / 60

ទីតាំងរបស់ Lingual tonsil គឺៈ

a. នៅលើ Larynx

b. នៅលើ Pharynx

c. នៅលើ Palate

d. នៅផ្នែកខាងក្រោយបង្អស់នៃអណ្តាត ក្នុងបំពង់ក

60 / 60

The high level clear cell present in the oral epithelium is?

a. Merkel cell

b. Langerhans cell

c. Lymphocyte

d. Melanocyte

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និស្សិតអាចប្រាប់មកកាន់ពួកយើងបានដើម្បីកែកំហុស ឬអំពីបញ្ហាដោយអចេតនាណាមួយដែលកើតមានកំឡុងពេលធ្វើតេស្ត