Oral Histology Test

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Oral Histology Test

1 / 60

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

a. Keratinocyte.

b. Osteoblasts.

c. Fibroblast.

d. Plasma cell.

2 / 60

Most cases of tonsillitis occur in which age group:

a. 11 to 21

b. 10 and under

c. 21 to 40

d. 40 to 65

3 / 60

Intercalated duct is :

a. a duct from acinus

b. a duct from a salivery gland

c. a duct from a paritide gland

d. a duct from a lumen

4 / 60

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

a. Stratified squamous epithelium

b. Stratified cuboidal epithelium

c. Simple columnar epithelium

d. Simple squamous epithelium

5 / 60

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

a. Lysosomes.

b. Glycogen contents.

c. Desmosomes.

d. Keratohyaline granules.

6 / 60

Wharton’s duct drains the:

a. Lacrimal gland

b. Pancreas

c. Parotid

d. Submandibular gland

7 / 60

Healthy line is represented in:

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

b. Mucogingival junction.

c. Junction of the buccal and labial mucosa.

d. Free gingival groove.

8 / 60

Sublingual glands is a :

a. Mixed glands

b. Present in root of the tongue

c. Mucous gland

d. Serous gland

9 / 60

Taste buds are in

a. Soft palate

b. Tongue

c. Hard palate

d. Teeth

10 / 60

The total amount of saliva secreted by all the salivary glands about 30% is secreted by the :

a. Submandibular gland

b. All the answers in this question are incorrect

c. Sublingual gland

d. Parotid gland

11 / 60

The lymph nodes មានតួនាទី :

a. ច្រោះ Lipids

b. ច្រោះ Glucose

c. ច្រោះ Proteins

d. ច្រោះ Toxic products

12 / 60

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

a. Gingiva and alveolar mucosa

b. Hard palate and gingiva

c. Hard and soft palate

d. Buccal and alveolar mucosa

13 / 60

Difference between the skin and mucosa of cheek is?

a. Rete pegs

b. Keratinized mucosa of cheek

c. Thick lamina propria on skin of cheek

d. Thin lamina and non keratinized mucosa of cheek

14 / 60

B-cells ( lumphocytes ) can?

a. Kill other cells

b. Secrete interferon

c. Suppress T-cells

d. Give rise to plasma cells

15 / 60

Taste buds are in :

a. Teeth

b. Tongue

c. Hard palate

d. Soft palate

16 / 60

Displasia គឺជា៖

a. Disorder of cell distribution

b. Disorder of cell in mitosis

c. Disorder of cell structure formation

d. Disorder of cell in migration

17 / 60

Taste buds មិនមាននៅក្នុង៖

a. Filiform papillae

b. Circumvallate papillae

c. Foliate papillae

d. Fungiform papillae

18 / 60

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

a. Diplococci

b. Streptococci

c. Staphylococci

d. Bacilli

19 / 60

The buccal mucosa:

a. Is continuous with the gingival mucosa.

b. It is firmly attached to the underlying tissues.

c. Has a keratinized epithelium.

d. Has numerous connective tissue papillae.

20 / 60

ទីតាំងរបស់ Pharyngeal tonsil គឺៈ

a. នៅលើ Palate

b. នៅលើ Pharynx

c. នៅខាងលើនិងខាងក្រោយកន្លែងបត់នៃរន្ធច្រមុះទៅក្នុង Nasopharynx

d. នៅលើ Larynx

21 / 60

Basement membrane នៅចន្លោះ:

a. Epithelium and submucosa

b. Lamina propria and submucosa

c. Epithelium and Bone

d. Epithelium and lamina propria

22 / 60

The structure of the oral mucosa is:

a. Epithelium, lamina propria and muscular layer.

b. Epithelium, lamina propria and basement membrane.

c. Mucosa & submucosa.

d. Epithelium and basement membrane.

23 / 60

A long with a sore throat and fever ,which of these can be a symptom of an adenoid infection:

a. Breathing mostly through the mouth, rather than through the nose

b. Ear infections that keep coming back

c. Snoring during sleep

d. All the answers in this question are correct

e. Noisy breathing while a wake

24 / 60

The mucogingival junction is the junction of:

a. Sulcular epithelium & free gingiva.

b. Sulcular epithelium & free gingiva.

c. Alveolar mucosa and attached gingiva.

d. Palatine gingival & rougae zone.

25 / 60

The basket cells are also known as :

a. Parenchymal cells

b. Endothelial cells

c. Myoepithelial cells

d. All the answers in this question are incorrect

26 / 60

Basement membrane?

a. Contains lamina lucida and lamina dura

b. Consists of desmosomes and hemidesmosomes

c. Consists lurati hyaline granules

d. Consists of lamina densa and lamina lucida

27 / 60

Bacteria that cause disease are called:

a. Protozoa

b. Nonpathogenic

c. Saprophytes

d. Pathogenic

28 / 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

29 / 60

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

a. 1,000

b. 100

c. 10,000

d. 100,000

30 / 60

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

a. Langerhans cell

b. Melanocyte

c. Lymphocyte

d. Merkel cell

31 / 60

The somatic nervous system is part of the:

a. Sympathetic nervous system

b. Autonomic nervous system

c. Parasympathetic nervous system

d. All the answers in this question are incorrect

32 / 60

The peripheral nervous system includes the:

a. Spinal cord

b. Brain

c. Somatic nervous system

d. Nuclei

33 / 60

Sulcular epithelium is formed of:

a. Parakeratinized stratified squamous epithelium.

b. Orthokeratinized stratified squamous epithelium.

c. Columnar epithelium.

d. Nonkeratinized stratified squamous epithelium.

34 / 60

Lumen is:

a. a cental opening of an acini

b. a central opening of an oral cavity

c. a central opening of a tooth

d. a central opening of a gland

35 / 60

A cyst occurring under the tongue caused by obstruction of salivary gland duct is called a?

a. Follicular cyst

b. Ranula

c. Dermiod cyst

d. Dentigerous cyst

36 / 60

Partially keratinized papilla is?

a. Circumvallate

b. Fungiform

c. Filliform

d. Foliate

37 / 60

Lamina densa of the gingival basement membrane is rich in?

a. Type IV collagen

b. Type I and II collagen

c. Type I collagen

d. Type III collagen

38 / 60

Which of the following conditions present as complete vesicle?

a. Pyostomatitis

b. Pemphigus

c. Aphthous ulcer

d. Dermatitis

39 / 60

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

a. Under the tongue

b. Behind the nose and roof of the mouth

c. All the answers in this question are incorrect

d. In the ears

40 / 60

Keratohyaline granules are more evident in?

a. Ortho keratinized

b. Non keratinized

c. Keratinized

d. Para keratinized

41 / 60

A node of Ranvier is?

a. A junction between two schwann cells

b. A nerve receptor

c. Characteristic of unmyelinated fibers

d. A constriction of the axon

42 / 60

The parotid glands open through the :

a. Blandin’s duct

b. Wharton’s duct

c. Stensen’s duct

d. Bartholin’s duct

43 / 60

The immunoglobulin present in saliva is :

a. IgA

b. IgM

c. IgE

d. IgG

44 / 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 granulosome cells

d. Destroying desmosome in stratum spinosum cells

45 / 60

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

a. Ribosomes.

b. Tonofibrils.

c. Keratohyaline granules.

d. Membrane coating granules.

46 / 60

Specialized cells migrate

a. to the upper layers

b. to the lower layer

c. to lamina propria

d. to basement membrane

47 / 60

Bulla:

a. Vesicle

b. Large vesicles that are confluent

c. large lesion

d. large pustule

48 / 60

Hypertrophy is?

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

49 / 60

The most common cell in connective tissue proper is the?

a. Macrophage

b. Mast cell

c. Fibroblast

d. Lymphocyte

50 / 60

Taste buds មិនមាននៅក្នុង:

a. Filiform papillae

b. Fungiform papillae

c. Circumvallate papillae

d. Foliate papillae

51 / 60

Masticatory mucosa is?

a. Para keratinized

b. Sub keratinized

c. Non keratinized

d. Ortho keratinized

52 / 60

នៅក្នុងមាត់ មាន Tosils អ្វីខ្លះ:

a. Tubal tonsil

b. Palatine tonsils and Lingual tonsil

c. All the answers in this question are correct

d. Pharyngeal tonsil

53 / 60

Secialized cells migrate:

a. to lamina propria

b. to basement membrane

c. to the lower layer

d. to the upper layers

54 / 60

Taste buds are not found on:

a. Foliate papillae.

b. Fungiform papillae.

c. Filliform papillae.

d. Circumvallate papillae.

55 / 60

The three laterally paired major salivary glands are located :

a. In tongue

b. Extra orally

c. In neck

d. Intra orally

56 / 60

Supporting cells of taste buds are called as?

a. Taste cells

b. Sustenticular cells

c. Acini

d. Von Ebner cells

57 / 60

The total volume of saliva secreted daily is :

a. 1.5 litres

b. 2 litres

c. 3 litres

d. 750 ml

58 / 60

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

a. Sublingual and Parotid

b. Von Ebner

c. Submandibular and Parotid

d. Submandibular and Sublingual

59 / 60

Excretory duct is

a. a duct from a sublimgual gland

b. a duct from a parotide gland

c. a duct from a submandibular gland

d. a duct from a striated ducts

60 / 60

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

a. Lip and posterior third of the hard palate

b. Gingiva and anterior part of hard palate

c. Tongue and soft palate

d. Retromolar area and hard palate

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និស្សិតអាចប្រាប់មកកាន់ពួកយើងបានដើម្បីកែកំហុស ឬអំពីបញ្ហាដោយអចេតនាណាមួយដែលកើតមានកំឡុងពេលធ្វើតេស្ត