Oral Histology Test

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Oral Histology Test

1 / 60

Function of acini is:

a. to produce gastric acid

b. to produce histamine

c. to produce hormone

d. to produce saliva

2 / 60

Color of the normal gingiva is?

a. Pink

b. All the answers in this question are incorrect

c. Red

d. Coral pink

3 / 60

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

a. Tongue

b. Oropharynx

c. Lips

d. Roof of the soft plate

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

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.

5 / 60

The parotid gland opens :

a. On the buccal mucosa opposite the maxillary second molar

b. At the side of the lingual frenum

c. On the floor of the mouth

d. At the caruncular

6 / 60

Atrophy គឺជា៖

a. Lack of oxygen for cells

b. Chronic inflammation

c. Lack of nutrition for cells

d. Acute inflammation

7 / 60

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

a. Pemphigus

b. Herpes zoster

c. Herpes simplex

d. A granulocytosis

8 / 60

Intermediate layer មាននៅក្នុងៈ

a. Parakeratinized epithelium

b. Keratinized epithelium

c. Nonkeratinized epithelium

d. Orthokeratinized epithelium

9 / 60

Wharton’s duct drains the:

a. Parotid

b. Submandibular gland

c. Pancreas

d. Lacrimal gland

10 / 60

Pus forming bacteria that cause strep throat and blood poisoning are:

a. Diplococci

b. Staphylococci

c. Bacilli

d. Streptococci

11 / 60

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

a. The tonofilaments.

b. Stratum granulosum.

c. Prickle cell layer.

d. Basal cell layer.

12 / 60

The vermilion border requires frequent moistening because?

a. It contains more of sweat glands

b. It contains more of sebaceous glands

c. It contains less number of sweat glands

d. It contains less number of sebaceous glands

13 / 60

Lumen is:

a. a central opening of a tooth

b. a central opening of an oral cavity

c. a central opening of a gland

d. a cental opening of an acini

14 / 60

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

a. Buccal and alveolar mucosa

b. Hard and soft palate

c. Hard palate and gingiva

d. Gingiva and alveolar mucosa

15 / 60

Which one of the following epithelium is least common?

a. Transitional

b. Pseudo stratified columnar ( ciliated )

c. Simple columnar

d. Stratified columnar

16 / 60

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

a. It moves occlusally with age.

b. Contains clear submucosa.

c. It is derived entirely from ectomesenchyme.

d. It moves apically with age.

17 / 60

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

a. Fungiform.

b. Foliate.

c. Vallate.

d. Filliform.

18 / 60

Excretory duct is

a. a duct from a striated ducts

b. a duct from a submandibular gland

c. a duct from a parotide gland

d. a duct from a sublimgual gland

19 / 60

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

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

b. It shifts apically with age.

c. Its epithelial cells are keratinized stratified squamous.

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

20 / 60

The normal P^Hof saliva is about :

a. 9.5

b. 7.5

c. 5.5

d. 8.5

21 / 60

Partially keratinized papilla is?

a. Circumvallate

b. Fungiform

c. Filliform

d. Foliate

22 / 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

23 / 60

ទីតាំងរបស់ Tubal tonsil គឺៈ

a. នៅលើ Palate

b. នៅខាងក្រោយនៃ opening of Eustachian tube គឺនៅក្នុង Nasopharynx

c. នៅលើ Larynx

d. នៅលើ Pharynx

24 / 60

ទីតាំងរបស់ Lingual tonsil គឺៈ

a. នៅលើ Larynx

b. នៅលើ Palate

c. នៅលើ Pharynx

d. នៅផ្នែកខាងក្រោយបង្អស់នៃអណ្តាត ក្នុងបំពង់ក

25 / 60

Displasia គឺជា៖

a. Disorder of cell in migration

b. Disorder of cell structure formation

c. Disorder of cell distribution

d. Disorder of cell in mitosis

26 / 60

Masticatory mucosa has:

a. Stratum corneum.

b. Elastic fibers in its lamina propria.

c. Elastic fibers in its blood vessels wall.

d. No connective tissue papillae.

27 / 60

The broadest basis for classifying epithelium into subgroups is?

a. Lining or granular

b. Simple or stratified

c. Keratinized or not keratinized

d. Squamous cuboidal or columnar

28 / 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.

29 / 60

Specialized cells stem from:

a. Basement membrane

b. Cornified layer

c. Granular layer

d. Basal layer and prickle cell layer

30 / 60

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

a. Existance of high number of langerhans cells.

b. Epithelial keratinization.

c. Thichness of oral epithelium.

d. Vascularity of the lamina propria.

31 / 60

The immunoglobulin present in saliva is :

a. IgG

b. IgE

c. IgM

d. IgA

32 / 60

What is the end of an axon called:

a. Astrocyte

b. Ganglion

c. Terminal bouton

d. Perikaryon

33 / 60

Larges amount of saliva is produced by :

a. Sublingual glands

b. Parotid glands

c. Submandibular glands

d. Von Ebner glands

34 / 60

Most areas of oral mucosa are:

a. Keratiniezd stratified epithelium

b. ParaKeratiniezd stratified epithelium

c. OrthoKeratiniezd stratified epithelium

d. NonKeratiniezd stratified epithelium

35 / 60

ទីតាំងរបស់ Tubal tonsil គឺៈ

a. នៅខាងក្រោយនៃ opening of Eustachian tube គឺនៅក្នុង Nasopharynx

b. នៅលើ Pharynx

c. នៅលើ Larynx

d. នៅលើ Palate

36 / 60

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

a. Vestibular lamina.

b. Enamel cuticle.

c. Dental sac.

d. Reduced enamel epithelium & gingiva.

37 / 60

What is a secretory cell in oral cavity:

a. Cell producing hormone

b. Cell producing histamine

c. Cell producing gastric acid

d. Cell producing saliva

38 / 60

Wharton’s duct is of:

a. Parotide gland

b. Minor gland

c. Sub-mandibular gland

d. Sub-lingual gland

39 / 60

Bulla

a. large lesion

b. Large vesicles that are confluent

c. Vesicle

d. large pustule

40 / 60

Specialized cells stem from

a. Basal layer and prickle cell layer

b. Cornified layer

c. Basement membrane

d. Granular layer

41 / 60

Basement membrane នៅចន្លោះ:

a. Lamina propria and submucosa

b. Epithelium and lamina propria

c. Epithelium and submucosa

d. Epithelium and Bone

42 / 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. Filliform.

b. Folliate.

c. Circumvallate.

d. Fungiform.

43 / 60

Which papillae are completely keratinized?

a. Fungiform

b. Circumvallate

c. Filliform

d. Foliate

44 / 60

Myoepithelial cell of an acini is:

a. kind of cell in a heart

b. kind of cell in a salivery gland

c. kind of contractile cell on an acini

d. kind of cell in a tonsil

45 / 60

Facial artery is the branch of the:

a. External carotid artery

b. Superficial temporal

c. Internal carotid artery

46 / 60

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

a. Melanocyte

b. Langerhans cell

c. Lymphocyte

d. Merkel cell

47 / 60

Which of the following is not found in saliva :

a. Lysozyme

b. Triypsine

c. Bicarbonate

d. Phosphate

48 / 60

A sign of bacterial infection is:

a. A cold

b. Pus

c. Parasites

d. Bleeding

49 / 60

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

a. Basal cell layer

b. Basal cells and parabasal spinous cslls

c. Granular cell layer

d. Spinous cells and granular cells

50 / 60

Which of the following is found in the cerebellum:

a. Basket cells

b. Schwann cells

c. Neuroglia

d. Ganglion

51 / 60

Parakeratinized epithelium is found in:

a. Floor of the mouth.

b. Vestibular fornix.

c. Ventral surface of tongue.

d. Gingiva.

52 / 60

The somatic nervous system is part of the:

a. Parasympathetic nervous system

b. All the answers in this question are incorrect

c. Sympathetic nervous system

d. Autonomic nervous system

53 / 60

B-cells ( lumphocytes ) can?

a. Give rise to plasma cells

b. Secrete interferon

c. Suppress T-cells

d. Kill other cells

54 / 60

Basement membrane?

a. Consists of desmosomes and hemidesmosomes

b. Consists of lamina densa and lamina lucida

c. Contains lamina lucida and lamina dura

d. Consists lurati hyaline granules

55 / 60

Non keratinized epithelium is found over?

a. Interdental papilla

b. Free gingiva

c. Gingival sulcus

d. Attached gingiva

56 / 60

ទីតាំងរបស់ Pharyngeal tonsil គឺៈ

a. នៅលើ Larynx

b. នៅខាងលើនិងខាងក្រោយកន្លែងបត់នៃរន្ធច្រមុះទៅក្នុង Nasopharynx

c. នៅលើ Pharynx

d. នៅលើ Palate

57 / 60

How are infections of the tonsils or adenoids usually treat:

a. All the answers in this question are incorrect

b. Acetaminophen

c. Aspirin

d. Antibiotic

58 / 60

Taste buds are in :

a. Teeth

b. Hard palate

c. Soft palate

d. Tongue

59 / 60

Merkel cells are found in which of the following tissue?

a. Hypodermis

b. Reticular of dermis

c. Epidermis

d. Papillary layer of dermis

60 / 60

Diskeratosis is?

a. Chronic inflammation

b. Precancerous state

c. Acute inflammation

d. Increasing in the number of cells

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និស្សិតអាចប្រាប់មកកាន់ពួកយើងបានដើម្បីកែកំហុស ឬអំពីបញ្ហាដោយអចេតនាណាមួយដែលកើតមានកំឡុងពេលធ្វើតេស្ត