Oral Histology Test

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Oral Histology Test

1 / 60

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

a. It is derived entirely from ectomesenchyme.

b. It moves occlusally with age.

c. It moves apically with age.

d. Contains clear submucosa.

2 / 60

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

a. Vallate.

b. Filliform.

c. Foliate.

d. Fungiform.

3 / 60

Sulcular epithelium is formed of:

a. Nonkeratinized stratified squamous epithelium.

b. Columnar epithelium.

c. Parakeratinized stratified squamous epithelium.

d. Orthokeratinized stratified squamous epithelium.

4 / 60

Color of the normal gingiva is?

a. Pink

b. All the answers in this question are incorrect

c. Red

d. Coral pink

5 / 60

A node of Ranvier is?

a. A junction between two schwann cells

b. A constriction of the axon

c. Characteristic of unmyelinated fibers

d. A nerve receptor

6 / 60

The mucosa of the dorsal surface of the tongue is:

a. Spesialized mucosa.

b. Linning mucosa.

c. Masticatory mucosa.

d. Smooth surface.

7 / 60

Specialized cells stem from

a. Basement membrane

b. Basal layer and prickle cell layer

c. Granular layer

d. Cornified layer

8 / 60

How are infections of the tonsils or adenoids usually treat:

a. All the answers in this question are incorrect

b. Antibiotic

c. Acetaminophen

d. Aspirin

9 / 60

Acantholysis គឺជាៈ

a. Destroying desmosome in stratum basal cells

b. Destroying desmosome in stratum spinosum cells

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

d. Destroying desmosome in stratum granulosome cells

10 / 60

The most important indication of malignant lesion is?

a. Teeth movement

b. Pain

c. Tooth resorption

d. Paresthesia

11 / 60

Von Ebner’s salivary gland is:

a. Sub-mandibular gland

b. Minor gland

c. Sub-lingual gland

d. Parotide gland

12 / 60

Parakeratinized epithelium is found in:

a. Ventral surface of tongue.

b. Vestibular fornix.

c. Gingiva.

d. Floor of the mouth.

13 / 60

Function of acini is:

a. to produce gastric acid

b. to produce histamine

c. to produce hormone

d. to produce saliva

14 / 60

Which these is a common problem with tonsils:

a. They make an infection worse

b. They can become infected themselves

c. They become swollen

d. They become swollen and They can become infected themselves

15 / 60

How many neurones are in the body of man:

a. 10,000,000

b. 10,000,000,000

c. 10,000

d. 10,000,000,000,000

16 / 60

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

a. Filliform

b. Foliate

c. Fungiform

d. Circumvallate

17 / 60

Which papillae are completely keratinized?

a. Circumvallate

b. Foliate

c. Filliform

d. Fungiform

18 / 60

Wharton’s duct drains the:

a. Submandibular gland

b. Parotid

c. Pancreas

d. Lacrimal gland

19 / 60

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

a. Dentigerous cyst

b. Dermoid cyst

c. Ranula

d. Follicular cyst

20 / 60

The humans, the lining epithelium of the esophagus is?

a. Simple columnar

b. Stratified squamous, non-keratinized

c. Stratified squamous, keratinized

d. Transitional

21 / 60

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

a. Submandibular and Sublingual

b. Von Ebner

c. Sublingual and Parotid

d. Submandibular and Parotid

22 / 60

Sublingual glands is a :

a. Mucous gland

b. Mixed glands

c. Present in root of the tongue

d. Serous gland

23 / 60

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

a. Gingiva.

b. Alveolar mucosa.

c. Floor of the mouth.

d. Buccal mucosa.

24 / 60

Lamina densa of the gingival basement membrane is rich in?

a. Type I collagen

b. Type I and II collagen

c. Type III collagen

d. Type IV collagen

25 / 60

Intermediate layer មាននៅក្នុងៈ

a. Parakeratinized epithelium

b. Orthokeratinized epithelium

c. Nonkeratinized epithelium

d. Keratinized epithelium

26 / 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

27 / 60

The immunoglobulin present in saliva is :

a. IgG

b. IgA

c. IgM

d. IgE

28 / 60

Hypertrophy is?

a. Increase in size of an organ

b. Increase in cell number of an organ

c. Decrease in cell number of an organ

d. Decrease in size of an organ

29 / 60

The lymph nodes មានតួនាទី :

a. ច្រោះ Proteins

b. ច្រោះ Toxic products

c. ច្រោះ Lipids

d. ច្រោះ Glucose

30 / 60

Keratohyaline granules are more evident in?

a. Non keratinized

b. Keratinized

c. Ortho keratinized

d. Para keratinized

31 / 60

The mushroom shaped papillae on the tongue are called:

a. Foliate

b. Circumvallate

c. Fungiform

d. Filliform

32 / 60

The mucogingival junction is the junction of:

a. Sulcular epithelium & free gingiva.

b. Alveolar mucosa and attached gingiva.

c. Palatine gingival & rougae zone.

d. Sulcular epithelium & free gingiva.

33 / 60

Which one of the following epithelium is least common?

a. Pseudo stratified columnar ( ciliated )

b. Stratified columnar

c. Transitional

d. Simple columnar

34 / 60

Hyperplasia គឺជា៖

a. Increase in size of an organ or tissue

b. Decrease in cell number of an organ

c. Increase in cell number of an organ or tissue

d. Decrease in size of an organ

35 / 60

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

a. Circumvallate

b. Fungiform

c. Filliform

d. Foliate

36 / 60

Myoepithelial cells are present in :

a. Mucous cells

b. Striate duct

c. Serous cells

d. Intercalated duct and terminal duct

37 / 60

ទីតាំងរបស់ Tubal tonsil គឺៈ

a. នៅខាងក្រោយនៃ opening of Eustachian tube គឺនៅក្នុង Nasopharynx

b. នៅលើ Pharynx

c. នៅលើ Palate

d. នៅលើ Larynx

38 / 60

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

a. Keratinocyte.

b. Plasma cell.

c. Fibroblast.

d. Osteoblasts.

39 / 60

Dendritic cell located in the stratified squamous keratinized epithelium of the oral cavity include?

a. Myoepithelial cell

b. Mast cells

c. Melanocytes

d. Keratinocytes

40 / 60

What do your tonsils and adenoids do:

a. They are part of your immune system

b. All the answers in this question are incorrect

c. They help your nose with the sense of smell

d. They don’t do anything

41 / 60

Wharton’s duct is of:

a. Minor gland

b. Parotide gland

c. Sub-lingual gland

d. Sub-mandibular gland

42 / 60

Hypertrophy គឺជា៖

a. Decrease in cell number of an organ

b. Increase in size of an organ

c. Decrease in size of an organ

d. Increase in cell number of an organ

43 / 60

ចំពោះមនុស្សដែលមានសុខភាពល្អម្នាក់ lymph nodes ជាធម្មតា :

a. All the answers in this question are correct

b. Free

c. Small

d. Soft

44 / 60

Lumen is:

a. a central opening of a gland

b. a cental opening of an acini

c. a central opening of a tooth

d. a central opening of an oral cavity

45 / 60

Bulla

a. Vesicle

b. Large vesicles that are confluent

c. large pustule

d. large lesion

46 / 60

The floor of the mouth is lined by:

a. Linning mucosa firmly attached.

b. Masticatory mucosa.

c. Linning mucosa loosely attached.

d. Specialized mucosa.

47 / 60

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

a. Can migrate coronally.

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

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

d. Is impermeable to dyes and fluids.

48 / 60

Supporting cells of taste buds are called as?

a. Von Ebner cells

b. Taste cells

c. Acini

d. Sustenticular cells

49 / 60

Submandibular gland is supplied by:

a. Facial artery

b. Lingual artery

c. Inferior alveolar artery

d. Submandibular artery

50 / 60

ទីតាំងរបស់ Pharyngeal tonsil គឺៈ

a. នៅលើ Pharynx

b. នៅលើ Palate

c. នៅលើ Larynx

d. នៅខាងលើនិងខាងក្រោយកន្លែងបត់នៃរន្ធច្រមុះទៅក្នុង Nasopharynx

51 / 60

Facial artery is the branch of the:

a. External carotid artery

b. Superficial temporal

c. Internal carotid artery

52 / 60

The mode of attachment of the junctional epithelium is:

a. Enamel cuticle.

b. Basement membrane.

c. Basal lamina & hemidesmosome.

d. Odland's bodies.

53 / 60

The mucous membrane of cheek and lips?

a. It attached to orbicularis oris in lips

b. A and B are correct

c. All the answers in this question are incorrect

d. It attached to buccinators muscle in cheek

54 / 60

Striated duct is:

a. a duct from a salivery gland

b. a duct from a submandibular gland

c. a duct from a system duct

d. a duct from intercalated ducts

55 / 60

The sour taste come from:

a. Citric acids

b. Amino acids

c. All the answers in this question are incorrect

d. Sodium chloride

56 / 60

Keratohyalin is found in the?

a. Stratum reticularis

b. Hyalin cartilage

c. Stratum corneum

d. Stratum granulosum

57 / 60

Hyperkeratosis is:

a. Increase in longevity of keratin layer or stratum corneum

b. Increase in size of keratin layer or stratum corneum

c. Increase in thickness of keratin layer or stratum corneum

d. Increase in wideness of keratin layer or stratum corneum

58 / 60

Keratinized epithelium differs from nonkeratinized epithelium in that:

a. It does not contain basal lamina.

b. It contains granular cell layer.

c. No tonofilaments are found in it.

d. Contain a higher glycogen content.

59 / 60

Stenon’s duct is of:

a. Sub-mandibular gland

b. Sub-lingual gland

c. Parotide gland

d. Minor gland

60 / 60

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

a. Glycogen contents.

b. Lysosomes.

c. Desmosomes.

d. Keratohyaline granules.

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និស្សិតអាចប្រាប់មកកាន់ពួកយើងបានដើម្បីកែកំហុស ឬអំពីបញ្ហាដោយអចេតនាណាមួយដែលកើតមានកំឡុងពេលធ្វើតេស្ត