Oral Histology Test

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Oral Histology Test

1 / 60

Masticatory mucosa in the oral cavity covers the?

a. Gingiva and hard palate

b. Floor of the mouth and soft palate

c. Alveolar mucosa and vestibular fornix

d. Lip and cheek

2 / 60

Diskeratosis គឺជាៈ

a. Abnormality of structure and development of epithelial cells.

b. Abnormality of orientation and development of epithelial cells.

c. Abnormality of migration and cells mitosis.

d. Abnormality of orientation and cells mitosis.

3 / 60

The broadest basis for classifying epithelium into subgroups is?

a. Squamous cuboidal or columnar

b. Lining or granular

c. Simple or stratified

d. Keratinized or not keratinized

4 / 60

The immunoglobulin present in saliva is :

a. IgE

b. IgA

c. IgG

d. IgM

5 / 60

Wharton’s duct is of:

a. Sub-lingual gland

b. Minor gland

c. Parotide gland

d. Sub-mandibular gland

6 / 60

Diskeratosis is?

a. Precancerous state

b. Chronic inflammation

c. Increasing in the number of cells

d. Acute inflammation

7 / 60

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

a. Fungiform.

b. Filliform.

c. Vallate.

d. Foliate.

8 / 60

The structure of the oral mucosa is:

a. Epithelium, lamina propria and basement membrane.

b. Mucosa & submucosa.

c. Epithelium and basement membrane.

d. Epithelium, lamina propria and muscular layer.

9 / 60

Stratum granulosum is not present in?

a. Sulcular epithelium

b. Hyper orthokeratosis

c. Hyper parakeratosis

d. Non keratinized epithelium

10 / 60

Glands emptying the circumvalate trough are the:

a. Mucous and serous mixed glands.

b. Mucous glands.

c. Serous glands.

d. Glands of Nuhn.

11 / 60

Taste buds មិនមាននៅក្នុង៖

a. Circumvallate papillae

b. Fungiform papillae

c. Filiform papillae

d. Foliate papillae

12 / 60

The p^H of whole saliva is :

a. 3.0 – 5.6

b. 1.2 – 2.4

c. 7.0 – 8.2

d. 6.7 – 7.4

13 / 60

The mucogingival junction is the junction of:

a. Sulcular epithelium & free gingiva.

b. Palatine gingival & rougae zone.

c. Alveolar mucosa and attached gingiva.

d. Sulcular epithelium & free gingiva.

14 / 60

The cells most frequently found in a granuloma are :

a. Mast cells

b. Neutrophil

c. Lymphocytes

d. Giant cells

15 / 60

Disease in plant or animal tissue is caused by:

a. Saprophytes

b. Acidophilus

c. Nonpathogenic bacteria

d. Pathogenic bacteria

16 / 60

Supporting cells of taste buds are called as?

a. Sustenticular cells

b. Acini

c. Taste cells

d. Von Ebner cells

17 / 60

Intercalated duct is :

a. a duct from acinus

b. a duct from a lumen

c. a duct from a salivery gland

d. a duct from a paritide gland

18 / 60

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

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

b. Can migrate coronally.

c. Is impermeable to dyes and fluids.

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

19 / 60

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

a. Ranula

b. Dentigerous cyst

c. Dermoid cyst

d. Follicular cyst

20 / 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

21 / 60

Technical term for bacteria that live on dead matter is:

a. Flagella

b. Viruses

c. Parasites

d. Saprophytes

22 / 60

Parakeratinized epithelium is found in:

a. Ventral surface of tongue.

b. Floor of the mouth.

c. Gingiva.

d. Vestibular fornix.

23 / 60

នៅក្នុងមាត់ មាន Tosils អ្វីខ្លះ:

a. All are corrects

b. Palatine tonsils and Lingual tonsil

c. Pharyngeal tonsil

d. Tubal tonsil

24 / 60

Buccal mucosa is?

a. Non- keratinized

b. Keratinized

c. Ortho keratinized

d. Para keratinized

25 / 60

Keratohyalin granules are present in

a. Basement membrane

b. Basal layer and prickle cell layer

c. Granular layer and prickle cell layer

d. Cornified layer

26 / 60

Epithelium of oral mucous membrane is?

a. Only parakeratinized

b. Keratinized

c. Ortho,Para and nonkeratinized

d. Non keratinized

27 / 60

The mode of attachment of the junctional epithelium is:

a. Enamel cuticle.

b. Odland's bodies.

c. Basal lamina & hemidesmosome.

d. Basement membrane.

28 / 60

Hypertrophy is?

a. Increase in size of an organ

b. Decrease in size of an organ

c. Increase in cell number of an organ

d. Decrease in cell number of an organ

29 / 60

Difference between the skin and mucosa of cheek is?

a. Thin lamina and non keratinized mucosa of cheek

b. Keratinized mucosa of cheek

c. Thick lamina propria on skin of cheek

d. Rete pegs

30 / 60

ទីតាំងរបស់ Palatine tonsil គឺៈ

a. ចន្លោះ anterior pillar and posterior pillar

b. នៅលើ Palate

c. នៅលើ Pharynx

d. នៅលើ Larynx

31 / 60

Taste buds are not found on:

a. Filliform papillae.

b. Circumvallate papillae.

c. Fungiform papillae.

d. Foliate papillae.

32 / 60

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

a. Plasma cell.

b. Fibroblast.

c. Osteoblasts.

d. Keratinocyte.

33 / 60

Most cases of tonsillitis occur in which age group:

a. 11 to 21

b. 40 to 65

c. 10 and under

d. 21 to 40

34 / 60

Which of the following is not found in saliva :

a. Triypsine

b. Lysozyme

c. Phosphate

d. Bicarbonate

35 / 60

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

a. Stratified cuboidal epithelium

b. Simple columnar epithelium

c. Simple squamous epithelium

d. Stratified squamous epithelium

36 / 60

The most important indication of malignant lesion is?

a. Tooth resorption

b. Pain

c. Teeth movement

d. Paresthesia

37 / 60

Von Ebner’s salivary gland is:

a. Minor gland

b. Sub-lingual gland

c. Sub-mandibular gland

d. Parotide gland

38 / 60

The mucosa of the dorsal surface of the tongue is:

a. Masticatory mucosa.

b. Smooth surface.

c. Spesialized mucosa.

d. Linning mucosa.

39 / 60

The parotid glands open through the :

a. Bartholin’s duct

b. Stensen’s duct

c. Wharton’s duct

d. Blandin’s duct

40 / 60

A node of Ranvier is?

a. A nerve receptor

b. A junction between two schwann cells

c. Characteristic of unmyelinated fibers

d. A constriction of the axon

41 / 60

Color of the normal gingiva is?

a. All the answers in this question are incorrect

b. Coral pink

c. Pink

d. Red

42 / 60

Sulcular epithelium is formed of:

a. Nonkeratinized stratified squamous epithelium.

b. Orthokeratinized stratified squamous epithelium.

c. Columnar epithelium.

d. Parakeratinized stratified squamous epithelium.

43 / 60

Bulla

a. Large vesicles that are confluent

b. large pustule

c. Vesicle

d. large lesion

44 / 60

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

a. Retromolar area and hard palate

b. Tongue and soft palate

c. Lip and posterior third of the hard palate

d. Gingiva and anterior part of hard palate

45 / 60

The parotid gland opens :

a. On the floor of the mouth

b. At the side of the lingual frenum

c. On the buccal mucosa opposite the maxillary second molar

d. At the caruncular

46 / 60

Vesicle គឺជា

a. ពងខ្ទុះ

b. ពងទឹកលាយខ្ទុះ

c. ពងទឹក

d. ពងទឹកលាយឈាម

47 / 60

The floor of the mouth is lined by:

a. Masticatory mucosa.

b. Linning mucosa loosely attached.

c. Linning mucosa firmly attached.

d. Specialized mucosa.

48 / 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

49 / 60

Healthy line is represented in:

a. Mucogingival junction.

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

c. Junction of the buccal and labial mucosa.

d. Free gingival groove.

50 / 60

Inflammation of the lips is refered to as?

a. Glossitis migrican

b. Vincent angina

c. Cheilitis

d. Stomatitis

51 / 60

Which of the following is purely mucous :

a. Glossopalatine glands

b. Posterior lingual mucous glands

c. Palatine glands

d. All the answers in this question are correct

52 / 60

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

a. Lymphocyte

b. Merkel cell

c. Melanocyte

d. Langerhans cell

53 / 60

Circumvallate papillae are supplied by?

a. Vagus

b. Glossopharyngeal nerve

c. Hypoglossal nerve

d. Lingual nerve

54 / 60

Granular layer មាននៅក្នុងៈ

a. Non-keratinized epithelium

b. Keratinized, Para-keratinized and Ortho-keratinized epithelium

c. Para-keratinized epithelium

d. Keratinized epithelium

55 / 60

The somatic nervous system is part of the:

a. All the answers in this question are incorrect

b. Sympathetic nervous system

c. Autonomic nervous system

d. Parasympathetic nervous system

56 / 60

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

a. Filliform

b. Fungiform

c. Foliate

d. Circumvallate

57 / 60

Granular cell tumors of the adult is commonly seen on?

a. Upper lip

b. Gingiva

c. Tongue

d. Lower lip

58 / 60

Myoepithelial cell of an acini is:

a. kind of cell in a tonsil

b. kind of cell in a salivery gland

c. kind of contractile cell on an acini

d. kind of cell in a heart

59 / 60

The tonsillar ring or Waldeyer’s ring cosists of:

a. The tonsil

b. The lingual tonsil

c. All the answers in this question are correct

d. The adenoid

60 / 60

Each taste bud has————-that pick up signals from the foods we eat:

a. A hard shell

b. A sticky top

c. All the answers in this question are correct

d. Tiny hairs

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និស្សិតអាចប្រាប់មកកាន់ពួកយើងបានដើម្បីកែកំហុស ឬអំពីបញ្ហាដោយអចេតនាណាមួយដែលកើតមានកំឡុងពេលធ្វើតេស្ត