Oral Histology Test

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Oral Histology Test

1 / 60

Supporting cells of taste buds are called as?

a. Sustenticular cells

b. Acini

c. Von Ebner cells

d. Taste cells

2 / 60

Superficial layer មាននៅក្នុងៈ

a. Nonkeratinized epithelium

b. Parakeratinized epithelium

c. Keratinized epithelium

d. Orthokeratinized epithelium

3 / 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. Noisy breathing while a wake

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

d. All the answers in this question are correct

e. Snoring during sleep

4 / 60

Merkel cells are found in which of the following tissue?

a. Epidermis

b. Hypodermis

c. Papillary layer of dermis

d. Reticular of dermis

5 / 60

The mucosa of the dorsal surface of the tongue is:

a. Masticatory mucosa.

b. Linning mucosa.

c. Spesialized mucosa.

d. Smooth surface.

6 / 60

Vesicles or Bullae of the mucous membrane or skin are seen in all the following except?

a. Herpes zoster

b. Pemphigus

c. A granulocytosis

d. Herpes simplex

7 / 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. Circumvallate.

c. Folliate.

d. Fungiform.

8 / 60

ទីតាំងរបស់ Palatine tonsil គឺៈ

a. ចន្លោះ anterior pillar and posterior pillar

b. នៅលើ Pharynx

c. នៅលើ Palate

d. នៅលើ Larynx

9 / 60

Which papillae are completely keratinized?

a. Foliate

b. Filliform

c. Fungiform

d. Circumvallate

10 / 60

B-cells ( lumphocytes ) can?

a. Suppress T-cells

b. Secrete interferon

c. Give rise to plasma cells

d. Kill other cells

11 / 60

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

a. Vascularity of the lamina propria.

b. Epithelial keratinization.

c. Existance of high number of langerhans cells.

d. Thichness of oral epithelium.

12 / 60

Lamina densa of the gingival basement membrane is rich in?

a. Type I and II collagen

b. Type IV collagen

c. Type I collagen

d. Type III collagen

13 / 60

Difference between the skin and mucosa of cheek is?

a. Thick lamina propria on skin of cheek

b. Keratinized mucosa of cheek

c. Rete pegs

d. Thin lamina and non keratinized mucosa of cheek

14 / 60

Most areas of oral mucosa are:

a. Keratiniezd stratified epithelium

b. ParaKeratiniezd stratified epithelium

c. OrthoKeratiniezd stratified epithelium

d. NonKeratiniezd stratified epithelium

15 / 60

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

a. Fungiform

b. Circumvallate

c. Foliate

d. Filliform

16 / 60

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

a. Submandibular and Parotid

b. Sublingual and Parotid

c. Von Ebner

d. Submandibular and Sublingual

17 / 60

ទីតាំងរបស់ Pharyngeal tonsil គឺៈ

a. នៅលើ Larynx

b. នៅខាងលើនិងខាងក្រោយកន្លែងបត់នៃរន្ធច្រមុះទៅក្នុង Nasopharynx

c. នៅលើ Palate

d. នៅលើ Pharynx

18 / 60

Which one of the following epithelium is least common?

a. Transitional

b. Pseudo stratified columnar ( ciliated )

c. Simple columnar

d. Stratified columnar

19 / 60

Salivary glands are not found in :

a. Anterior part of the hard palate

b. In mandible posterior to the 3rd molar

c. Nasopalatine canal

d. Posterior part of the hard palate

20 / 60

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

a. III

b. IV

c. II

d. I

21 / 60

Hyperkeratosis is:

a. Increase in wideness of keratin layer or stratum corneum

b. Increase in size of keratin layer or stratum corneum

c. Increase in longevity of keratin layer or stratum corneum

d. Increase in thickness of keratin layer or stratum corneum

22 / 60

Glands emptying the circumvalate trough are the:

a. Mucous glands.

b. Serous glands.

c. Glands of Nuhn.

d. Mucous and serous mixed glands.

23 / 60

When do tonsils or adenoids need to be removed:

a. All the answers in this question are incorrect

b. When a child is having learning problems

c. When a child is 5 years old

d. When a child is 10 years old

24 / 60

The broadest basis for classifying epithelium into subgroups is?

a. Keratinized or not keratinized

b. Squamous cuboidal or columnar

c. Lining or granular

d. Simple or stratified

25 / 60

Hyperplasia គឺជា៖

a. Decrease in size of an organ

b. Increase in size of an organ or tissue

c. Decrease in cell number of an organ

d. Increase in cell number of an organ or tissue

26 / 60

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

a. 10,000

b. 1,000

c. 100,000

d. 100

27 / 60

The sour taste come from:

a. All the answers in this question are incorrect

b. Citric acids

c. Amino acids

d. Sodium chloride

28 / 60

Which of the following mucosa has a nonkeratinized epithelium :

a. Free gingiva.

b. Attached gingiva.

c. Mucosa of the floor of the mouth.

d. Palatal mucosa.

29 / 60

Von Ebner’s salivary gland is:

a. Parotide gland

b. Sub-mandibular gland

c. Minor gland

d. Sub-lingual gland

30 / 60

The tonsillar lymph node is situated at the level of?

a. Vertebrae

b. Jugulodigastric crossing

c. Clavicle

d. Angle of the mandible

31 / 60

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

a. Langerhans cell.

b. Lymphocyte.

c. Merkel cell.

d. Melanocyte.

32 / 60

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

a. Hard and soft palate

b. Buccal and alveolar mucosa

c. Hard palate and gingiva

d. Gingiva and alveolar mucosa

33 / 60

Which of the following regions has a nonkeratinized epithelium and is loosely attached to the underlying structures?:

a. Attached gingiva.

b. Buccal mucosa.

c. Hard palate.

d. Vestibular fornix.

34 / 60

The mode of attachment of the junctional epithelium is:

a. Basal lamina & hemidesmosome.

b. Odland's bodies.

c. Basement membrane.

d. Enamel cuticle.

35 / 60

The mucous membrane of cheek and lips?

a. All the answers in this question are incorrect

b. It attached to buccinators muscle in cheek

c. It attached to orbicularis oris in lips

d. A and B are correct

36 / 60

The connective tissue of the gingiva is known as the?

a. Lamina dura

b. Dental cuticle

c. Fibroblasts

d. Lamina propria

37 / 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. Contains clear submucosa.

d. It moves apically with age.

38 / 60

Circumvallate papillae are supplied by?

a. Vagus

b. Glossopharyngeal nerve

c. Hypoglossal nerve

d. Lingual nerve

39 / 60

The miner salivary glands begin their development in fetal life during :

a. 4th month

b. 3rd month

c. 1st month

d. 2nd month

40 / 60

Wharton’s duct drains the:

a. Submandibular gland

b. Pancreas

c. Parotid

d. Lacrimal gland

41 / 60

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

a. Fibroma

b. Hemangioma

c. Adenoma

d. Papilloma

42 / 60

The most important indication of malignant lesion is?

a. Pain

b. Teeth movement

c. Paresthesia

d. Tooth resorption

43 / 60

Atrophy is?

a. Lack of nutrition for cells

b. Acute inflammation

c. Lack of oxygen for cells

d. Chronic inflammation

44 / 60

Atrophy គឺជា៖

a. Chronic inflammation

b. Lack of nutrition for cells

c. Acute inflammation

d. Lack of oxygen for cells

45 / 60

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

a. Merkel cell

b. Melanocyte

c. Langerhans cell

d. Lymphocyte

46 / 60

Stenon’s duct is of:

a. Minor gland

b. Parotide gland

c. Sub-mandibular gland

d. Sub-lingual gland

47 / 60

How are infections of the tonsils or adenoids usually treat:

a. Antibiotic

b. Acetaminophen

c. Aspirin

d. All the answers in this question are incorrect

48 / 60

Basement membrane នៅចន្លោះ:

a. Epithelium and lamina propria

b. Lamina propria and submucosa

c. Epithelium and submucosa

d. Epithelium and Bone

49 / 60

Basement membrane?

a. Consists of lamina densa and lamina lucida

b. Consists of desmosomes and hemidesmosomes

c. Contains lamina lucida and lamina dura

d. Consists lurati hyaline granules

50 / 60

Masticatory mucosa is?

a. Ortho keratinized

b. Non keratinized

c. Sub keratinized

d. Para keratinized

51 / 60

The sulcular epithelium:

a. Has thick epithelial layer.

b. Is keratinized.

c. Has long epithelial ridges.

d. Is nonkeratinized.

52 / 60

Keratohyaline granules are more evident in?

a. Non keratinized

b. Para keratinized

c. Ortho keratinized

d. Keratinized

53 / 60

Tongue papillae responsible for bitter taste sensation:

a. Foliate papillae.

b. Circumvallate papillae.

c. Filliform papillae.

d. Fungiform papillae.

54 / 60

Sublingual glands is a :

a. Mucous gland

b. Mixed glands

c. Present in root of the tongue

d. Serous gland

55 / 60

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

a. Dermoid cyst

b. Follicular cyst

c. Ranula

d. Dentigerous cyst

56 / 60

The total amount of saliva secreted by all the salivary glands about 60% is secreted by :

a. Sublingual glands

b. Parotid glands

c. All the answers in this question are incorrect

d. Submandibular glands

57 / 60

The tonsillar ring or Waldeyer’s ring cosists of:

a. All the answers in this question are correct

b. The tonsil

c. The adenoid

d. The lingual tonsil

58 / 60

The most common malignancy found in the oral cavity is :

a. Squamous cell carcinoma

b. Basal cell carcinoma

c. Transitional cell carcinoma

d. Adenocarcinoma

59 / 60

The parotid glands open through the :

a. Blandin’s duct

b. Wharton’s duct

c. Stensen’s duct

d. Bartholin’s duct

60 / 60

Bartholin’s duct is of:

a. Sub-mandibular gland

b. Parotide gland

c. Sub-lingual gland

d. Minor gland

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និស្សិតអាចប្រាប់មកកាន់ពួកយើងបានដើម្បីកែកំហុស ឬអំពីបញ្ហាដោយអចេតនាណាមួយដែលកើតមានកំឡុងពេលធ្វើតេស្ត