Oral Histology Test

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Oral Histology Test

1 / 60

Stenon’s duct is of:

a. Minor gland

b. Sub-mandibular gland

c. Parotide gland

d. Sub-lingual gland

2 / 60

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

a. Ranula

b. Dentigerous cyst

c. Dermiod cyst

d. Follicular cyst

3 / 60

Specialized cells migrate

a. to basement membrane

b. to the upper layers

c. to lamina propria

d. to the lower layer

4 / 60

Intercalated duct is :

a. a duct from a lumen

b. a duct from a paritide gland

c. a duct from a salivery gland

d. a duct from acinus

5 / 60

Non keratinized epithelium is found over?

a. Gingival sulcus

b. Free gingiva

c. Interdental papilla

d. Attached gingiva

6 / 60

Taste buds មិនមាននៅក្នុង៖

a. Foliate papillae

b. Fungiform papillae

c. Circumvallate papillae

d. Filiform papillae

7 / 60

Masticatory mucosa in the oral cavity covers the?

a. Alveolar mucosa and vestibular fornix

b. Gingiva and hard palate

c. Floor of the mouth and soft palate

d. Lip and cheek

8 / 60

The sweet taste come from:

a. Amino acids

b. Alcohols

c. All the answers in this question are correct

d. Sugars

9 / 60

Bartholin’s duct is of:

a. Sub-lingual gland

b. Parotide gland

c. Minor gland

d. Sub-mandibular gland

10 / 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. Folliate.

b. Filliform.

c. Circumvallate.

d. Fungiform.

11 / 60

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

a. It moves apically with age.

b. Contains clear submucosa.

c. It is derived entirely from ectomesenchyme.

d. It moves occlusally with age.

12 / 60

Hyperplasia គឺជា៖

a. Increase in cell number of an organ or tissue

b. Decrease in size of an organ

c. Increase in size of an organ or tissue

d. Decrease in cell number of an organ

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

The buccal mucosa:

a. Has a keratinized epithelium.

b. Has numerous connective tissue papillae.

c. It is firmly attached to the underlying tissues.

d. Is continuous with the gingival mucosa.

15 / 60

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

a. Can migrate coronally.

b. Is impermeable to dyes and fluids.

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

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

16 / 60

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

a. Circumvallate

b. Filliform

c. Fungiform

d. Foliate

17 / 60

Taste buds are in

a. Tongue

b. Teeth

c. Hard palate

d. Soft palate

18 / 60

Hypertrophy is?

a. Increase in size of an organ

b. Increase in cell number of an organ

c. Decrease in size of an organ

d. Decrease in cell number of an organ

19 / 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

20 / 60

The tonsillar lymph node is situated at the level of?

a. Angle of the mandible

b. Clavicle

c. Jugulodigastric crossing

d. Vertebrae

21 / 60

The taste buds are rubbed off and replaced every:

a. Year

b. 30 days

c. Day

d. 7-10 days

22 / 60

The sour taste come from:

a. Citric acids

b. All the answers in this question are incorrect

c. Sodium chloride

d. Amino acids

23 / 60

Taste buds are in :

a. Tongue

b. Teeth

c. Soft palate

d. Hard palate

24 / 60

Disease in plant or animal tissue is caused by:

a. Pathogenic bacteria

b. Saprophytes

c. Acidophilus

d. Nonpathogenic bacteria

25 / 60

Hypertrophy គឺជា៖

a. Increase in size of an organ

b. Increase in cell number of an organ

c. Decrease in size of an organ

d. Decrease in cell number of an organ

26 / 60

Keratohyalin granules are present in

a. Basal layer and prickle cell layer

b. Granular layer and prickle cell layer

c. Cornified layer

d. Basement membrane

27 / 60

Which of the following is not found in saliva :

a. Triypsine

b. Lysozyme

c. Phosphate

d. Bicarbonate

28 / 60

The most common benign tumor occurring in the oral cavity is the :

a. Hemangioma

b. Fibroma

c. Adenoma

d. Papilloma

29 / 60

Basement membrane នៅចន្លោះ

a. Epithelium and lamina propria

b. Epithelium and submucosa

c. Lamina propria and submucosa

d. Epithelium and Bone

30 / 60

Which papillae are completely keratinized?

a. Fungiform

b. Filliform

c. Foliate

d. Circumvallate

31 / 60

The lymph nodes មានតួនាទី :

a. ច្រោះ Toxic products

b. ច្រោះ Glucose

c. ច្រោះ Lipids

d. ច្រោះ Proteins

32 / 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

33 / 60

The function of myoepithelial cells may be :

a. Initiating contraction

b. Support for the end piece during active secretion of saliva

c. Provide signals to the acinar secretory cells for structural reorganization

d. All the answers in this question are correct

34 / 60

Basement membrane?

a. Consists of lamina densa and lamina lucida

b. Consists of desmosomes and hemidesmosomes

c. Consists lurati hyaline granules

d. Contains lamina lucida and lamina dura

35 / 60

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

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

b. Its epithelial cells are keratinized stratified squamous.

c. It shifts apically with age.

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

36 / 60

The sulcular epithelium:

a. Is nonkeratinized.

b. Is keratinized.

c. Has long epithelial ridges.

d. Has thick epithelial layer.

37 / 60

Secialized cells migrate:

a. to the lower layer

b. to lamina propria

c. to basement membrane

d. to the upper layers

38 / 60

Bartholin’s duct drains the:

a. Lacrimal gland

b. Submandibular gland

c. Parotid

d. Sublingual gland

39 / 60

The vermilion border requires frequent moistening because?

a. It contains more of sebaceous glands

b. It contains less number of sebaceous glands

c. It contains more of sweat glands

d. It contains less number of sweat glands

40 / 60

Keratohyaline granules are found in?

a. Stratum spinosum

b. Stratum basale

c. Prickle cell layer

d. Stratum granulosum

41 / 60

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

a. Tongue and soft palate

b. Retromolar area and hard palate

c. Gingiva and anterior part of hard palate

d. Lip and posterior third of the hard palate

42 / 60

The gland’s present in between the muscle fibres of the tongue below vallate papillae are:

a. Lacrimal gland

b. Sublingual gland

c. Von Ebner’s gland

d. Submandibular gland

43 / 60

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

a. Vallate.

b. Fungiform.

c. Filliform.

d. Foliate.

44 / 60

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

a. Ear infections that keep coming back

b. Snoring during sleep

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

d. All the answers in this question are correct

e. Noisy breathing while a wake

45 / 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

46 / 60

Masticatory mucosa is?

a. Sub keratinized

b. Ortho keratinized

c. Para keratinized

d. Non keratinized

47 / 60

Color of the normal gingiva is?

a. Coral pink

b. All the answers in this question are incorrect

c. Red

d. Pink

48 / 60

Which one of the following epithelium is least common?

a. Simple columnar

b. Pseudo stratified columnar ( ciliated )

c. Transitional

d. Stratified columnar

49 / 60

Von Ebner’s salivary gland is:

a. Sub-lingual gland

b. Parotide gland

c. Sub-mandibular gland

d. Minor gland

50 / 60

The parotid glands open through the :

a. Bartholin’s duct

b. Wharton’s duct

c. Stensen’s duct

d. Blandin’s duct

51 / 60

Which of the following conditions present as complete vesicle?

a. Aphthous ulcer

b. Pyostomatitis

c. Pemphigus

d. Dermatitis

52 / 60

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

a. Sublingual gland

b. All the answers in this question are incorrect

c. Submandibular gland

d. Parotid gland

53 / 60

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

a. Desmosomes.

b. Lysosomes.

c. Keratohyaline granules.

d. Glycogen contents.

54 / 60

Most areas of oral mucosa are:

a. NonKeratiniezd stratified epithelium

b. Keratiniezd stratified epithelium

c. OrthoKeratiniezd stratified epithelium

d. ParaKeratiniezd stratified epithelium

55 / 60

Which of the following mucosa has a nonkeratinized epithelium :

a. Attached gingiva.

b. Palatal mucosa.

c. Mucosa of the floor of the mouth.

d. Free gingiva.

56 / 60

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

a. 1,000

b. 100

c. 10,000

d. 100,000

57 / 60

The parotid gland opens :

a. On the buccal mucosa opposite the maxillary second molar

b. At the caruncular

c. On the floor of the mouth

d. At the side of the lingual frenum

58 / 60

Bulk of lamina propria of the gingiva is made of collagen type?

a. I

b. IV

c. III

d. II

59 / 60

Displasia គឺជា៖

a. Disorder of cell in mitosis

b. Disorder of cell structure formation

c. Disorder of cell in migration

d. Disorder of cell distribution

60 / 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. Gingiva and alveolar mucosa

d. Hard palate and gingiva

Your score is

The average score is 91%

Any comments?

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និស្សិតអាចប្រាប់មកកាន់ពួកយើងបានដើម្បីកែកំហុស ឬអំពីបញ្ហាដោយអចេតនាណាមួយដែលកើតមានកំឡុងពេលធ្វើតេស្ត