Oral Histology Test

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Oral Histology Test

1 / 60

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

a. Herpes zoster

b. Pemphigus

c. Herpes simplex

d. A granulocytosis

2 / 60

Which of the following represents the correct innervation of fungiform papilla?:

a. Glossopharyngeal nerve.

b. Trigeminal nerve.

c. Facial nerve.

d. Chorda tympani.

3 / 60

The p^H of whole saliva is :

a. 6.7 – 7.4

b. 3.0 – 5.6

c. 1.2 – 2.4

d. 7.0 – 8.2

4 / 60

Which of the following is true of the sulcular epithelium:

a. Contain connective tissue papillae.

b. Is nonkeratinized.

c. Has submucosa.

d. Consists of keratinized epithelium.

5 / 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

6 / 60

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

a. Vestibular fornix.

b. Hard palate.

c. Attached gingiva.

d. Buccal mucosa.

7 / 60

Granular layer មាននៅក្នុងៈ

a. Para-keratinized epithelium

b. Non-keratinized epithelium

c. Keratinized epithelium

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

8 / 60

The three laterally paired major salivary glands are located :

a. Intra orally

b. Extra orally

c. In tongue

d. In neck

9 / 60

Larges amount of saliva is produced by :

a. Von Ebner glands

b. Parotid glands

c. Sublingual glands

d. Submandibular glands

10 / 60

The total volume of saliva secreted daily is :

a. 3 litres

b. 2 litres

c. 750 ml

d. 1.5 litres

11 / 60

Keratohyalin granules are present in:

a. Basal layer and prickle cell layer

b. Basement membrane

c. Cornified layer

d. Granular layer and prickle cell layer

12 / 60

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

a. Parotid glands

b. All the answers in this question are incorrect

c. Submandibular glands

d. Sublingual glands

13 / 60

The humans, the lining epithelium of the esophagus is?

a. Simple columnar

b. Transitional

c. Stratified squamous, keratinized

d. Stratified squamous, non-keratinized

14 / 60

Basement membrane នៅចន្លោះ:

a. Epithelium and lamina propria

b. Lamina propria and submucosa

c. Epithelium and Bone

d. Epithelium and submucosa

15 / 60

ទីតាំងរបស់ Palatine tonsil គឺៈ

a. ចន្លោះ anterior pillar and posterior pillar

b. នៅលើ Larynx

c. នៅលើ Palate

d. នៅលើ Pharynx

16 / 60

Non keratinized epithelium is found over?

a. Interdental papilla

b. Attached gingiva

c. Free gingiva

d. Gingival sulcus

17 / 60

Striated duct is:

a. a duct from a system duct

b. a duct from a submandibular gland

c. a duct from a salivery gland

d. a duct from intercalated ducts

18 / 60

The lymph nodes គឺជា bean-shaped bodies នៅជាក្រុមតាមបណ្តោយ:

a. Connective Lymphatic vessels

b. Veins

c. Arteries

d. Capillary

19 / 60

Wharton’s duct is of:

a. Sub-mandibular gland

b. Minor gland

c. Sub-lingual gland

d. Parotide gland

20 / 60

Bulla:

a. large lesion

b. Vesicle

c. large pustule

d. Large vesicles that are confluent

21 / 60

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

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

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

c. Its epithelial cells are keratinized stratified squamous.

d. It shifts apically with age.

22 / 60

The mushroom shaped papillae on the tongue are called:

a. Foliate

b. Fungiform

c. Circumvallate

d. Filliform

23 / 60

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

a. Keratinocyte.

b. Plasma cell.

c. Fibroblast.

d. Osteoblasts.

24 / 60

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

a. 100

b. 10,000

c. 100,000

d. 1,000

25 / 60

The mode of attachment of the junctional epithelium is:

a. Basal lamina & hemidesmosome.

b. Enamel cuticle.

c. Basement membrane.

d. Odland's bodies.

26 / 60

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

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

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

c. Can migrate coronally.

d. Is impermeable to dyes and fluids.

27 / 60

A sign of bacterial infection is:

a. Pus

b. A cold

c. Parasites

d. Bleeding

28 / 60

The onecelled microorganisms also known as germs or microbes are:

a. Viruses

b. Bacteria

c. Cilia

d. Fungi

29 / 60

Keratohyalin granules are present in

a. Cornified layer

b. Basal layer and prickle cell layer

c. Basement membrane

d. Granular layer and prickle cell layer

30 / 60

B-cells ( lumphocytes ) can?

a. Kill other cells

b. Secrete interferon

c. Suppress T-cells

d. Give rise to plasma cells

31 / 60

The buccal mucosa:

a. Has numerous connective tissue papillae.

b. Has a keratinized epithelium.

c. It is firmly attached to the underlying tissues.

d. Is continuous with the gingival mucosa.

32 / 60

Von Ebner’s salivary gland is:

a. Sub-mandibular gland

b. Minor gland

c. Sub-lingual gland

d. Parotide gland

33 / 60

Tongue papillae responsible for bitter taste sensation:

a. Filliform papillae.

b. Fungiform papillae.

c. Circumvallate papillae.

d. Foliate papillae.

34 / 60

Bartholin’s duct is the name of :

a. Lacrimal duct

b. Submandibular duct

c. Parotid duct

d. Sublingual duct

35 / 60

Lumen is:

a. a central opening of a gland

b. a central opening of an oral cavity

c. a central opening of a tooth

d. a cental opening of an acini

36 / 60

Secialized cells migrate:

a. to basement membrane

b. to lamina propria

c. to the upper layers

d. to the lower layer

37 / 60

Specialized cells stem from:

a. Cornified layer

b. Granular layer

c. Basement membrane

d. Basal layer and prickle cell layer

38 / 60

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

a. Melanocytes

b. Keratinocytes

c. Myoepithelial cell

d. Mast cells

39 / 60

In the tongue bitter taste is more perceived at?

a. Back

b. Sides

c. Tip

d. Front

40 / 60

The function of myoepithelial cells may be :

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

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

c. All the answers in this question are correct

d. Initiating contraction

41 / 60

Hypertrophy គឺជា៖

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

42 / 60

Stratum granulosum is not present in?

a. Sulcular epithelium

b. Non keratinized epithelium

c. Hyper orthokeratosis

d. Hyper parakeratosis

43 / 60

Intercalated duct is :

a. a duct from acinus

b. a duct from a lumen

c. a duct from a paritide gland

d. a duct from a salivery gland

44 / 60

How are infections of the tonsils or adenoids usually treat:

a. Acetaminophen

b. All the answers in this question are incorrect

c. Aspirin

d. Antibiotic

45 / 60

Myoepithelial cell of an acini is:

a. kind of cell in a heart

b. kind of cell in a tonsil

c. kind of contractile cell on an acini

d. kind of cell in a salivery gland

46 / 60

The floor of the mouth is lined by:

a. Masticatory mucosa.

b. Specialized mucosa.

c. Linning mucosa loosely attached.

d. Linning mucosa firmly attached.

47 / 60

Which one of the following epithelium is least common?

a. Simple columnar

b. Stratified columnar

c. Transitional

d. Pseudo stratified columnar ( ciliated )

48 / 60

នៅក្នុងមាត់ មាន Tosils អ្វីខ្លះ:

a. Pharyngeal tonsil

b. All the answers in this question are correct

c. Palatine tonsils and Lingual tonsil

d. Tubal tonsil

49 / 60

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Which is not true about taste buds:

a. Taste buds extend from the basal lamina to the surface of epithelium.

b. 10 to 20 neuroepithelial cells are the receptors of taste stimuli in a taste bud.

c. The supporting cells of a taste bud carry taste hairs.

d. Nerve fibers end in contact with the sensory cells in the taste buds.

50 / 60

What is the end of an axon called:

a. Ganglion

b. Astrocyte

c. Terminal bouton

d. Perikaryon

51 / 60

The sweet taste come from:

a. Alcohols

b. All the answers in this question are correct

c. Sugars

d. Amino acids

52 / 60

Taste buds are in

a. Hard palate

b. Teeth

c. Tongue

d. Soft palate

53 / 60

Vesicle or Bullae of the mucous membrane or skin are seen in all the following except :

a. Herpes zoster

b. Herpes simplex

c. Pemphigus

d. A granulocytosis

54 / 60

The basket cells are also known as :

a. Myoepithelial cells

b. Parenchymal cells

c. All the answers in this question are incorrect

d. Endothelial cells

55 / 60

The most important indication of malignant lesion is?

a. Pain

b. Paresthesia

c. Tooth resorption

d. Teeth movement

56 / 60

The tonsillar ring or Waldeyer’s ring cosists of:

a. All the answers in this question are correct

b. The adenoid

c. The lingual tonsil

d. The tonsil

57 / 60

Bacteria that cause disease are called:

a. Protozoa

b. Nonpathogenic

c. Saprophytes

d. Pathogenic

58 / 60

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

a. Hemangioma

b. Adenoma

c. Papilloma

d. Fibroma

59 / 60

Masticatory mucosa is?

a. Non keratinized

b. Sub keratinized

c. Para keratinized

d. Ortho keratinized

60 / 60

Keratohyaline granules are more evident in?

a. Keratinized

b. Para keratinized

c. Ortho keratinized

d. Non keratinized

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និស្សិតអាចប្រាប់មកកាន់ពួកយើងបានដើម្បីកែកំហុស ឬអំពីបញ្ហាដោយអចេតនាណាមួយដែលកើតមានកំឡុងពេលធ្វើតេស្ត