Oral Histology Test

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Oral Histology Test

1 / 60

The immunoglobulin present in saliva is :

a. IgM

b. IgE

c. IgG

d. IgA

2 / 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

3 / 60

Keratohyalin is found in the?

a. Stratum reticularis

b. Stratum granulosum

c. Stratum corneum

d. Hyalin cartilage

4 / 60

Myoepithelial cells are present in :

a. Serous cells

b. Intercalated duct and terminal duct

c. Striate duct

d. Mucous cells

5 / 60

Basement membrane នៅចន្លោះ

a. Lamina propria and submucosa

b. Epithelium and Bone

c. Epithelium and lamina propria

d. Epithelium and submucosa

6 / 60

The mushroom shaped papillae on the tongue are called:

a. Filliform

b. Fungiform

c. Foliate

d. Circumvallate

7 / 60

The sweet taste come from:

a. Amino acids

b. Alcohols

c. Sugars

d. All the answers in this question are correct

8 / 60

Parakeratinized epithelium is found in:

a. Floor of the mouth.

b. Ventral surface of tongue.

c. Vestibular fornix.

d. Gingiva.

9 / 60

Specialized cells migrate

a. to lamina propria

b. to basement membrane

c. to the upper layers

d. to the lower layer

10 / 60

The peripheral nervous system includes the:

a. Brain

b. Spinal cord

c. Somatic nervous system

d. Nuclei

11 / 60

How many neurones are in the body of man:

a. 10,000,000,000,000

b. 10,000,000

c. 10,000

d. 10,000,000,000

12 / 60

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

a. Floor of the mouth.

b. Buccal mucosa.

c. Gingiva.

d. Alveolar mucosa.

13 / 60

ទីតាំងរបស់ Lingual tonsil គឺៈ

a. នៅលើ Pharynx

b. នៅលើ Palate

c. នៅលើ Larynx

d. នៅផ្នែកខាងក្រោយបង្អស់នៃអណ្តាត ក្នុងបំពង់ក

14 / 60

Keratohyaline granules are found in?

a. Prickle cell layer

b. Stratum spinosum

c. Stratum basale

d. Stratum granulosum

15 / 60

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

a. Buccal mucosa.

b. Hard palate.

c. Attached gingiva.

d. Vestibular fornix.

16 / 60

Cornified layer មាននៅក្នុងៈ

a. Orthokeratinized epithelium

b. Parakeratinized epithelium

c. Nonkeratinized epithelium

d. Keratinized epithelium

17 / 60

The lymph nodes គឺជា bean-shaped bodies នៅជាក្រុមតាមបណ្តោយ:

a. Arteries

b. Connective Lymphatic vessels

c. Capillary

d. Veins

18 / 60

ទីតាំងរបស់ Pharyngeal tonsil គឺៈ

a. នៅលើ Larynx

b. នៅលើ Pharynx

c. នៅលើ Palate

d. នៅខាងលើនិងខាងក្រោយកន្លែងបត់នៃរន្ធច្រមុះទៅក្នុង Nasopharynx

19 / 60

Non keratinized epithelium is found over?

a. Free gingiva

b. Attached gingiva

c. Interdental papilla

d. Gingival sulcus

20 / 60

Granular layer មាននៅក្នុងៈ

a. Keratinized epithelium

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

c. Non-keratinized epithelium

d. Para-keratinized epithelium

21 / 60

Intermediate layer មាននៅក្នុងៈ

a. Keratinized epithelium

b. Nonkeratinized epithelium

c. Parakeratinized epithelium

d. Orthokeratinized epithelium

22 / 60

Stratum granulosum is not present in?

a. Sulcular epithelium

b. Non keratinized epithelium

c. Hyper orthokeratosis

d. Hyper parakeratosis

23 / 60

Masticatory mucosa has:

a. Elastic fibers in its blood vessels wall.

b. Stratum corneum.

c. Elastic fibers in its lamina propria.

d. No connective tissue papillae.

24 / 60

Technical term for bacteria that live on dead matter is:

a. Saprophytes

b. Viruses

c. Flagella

d. Parasites

25 / 60

The connective tissue of the gingiva is known as the?

a. Dental cuticle

b. Lamina dura

c. Fibroblasts

d. Lamina propria

26 / 60

Keratohyalin granules are present in

a. Basement membrane

b. Cornified layer

c. Basal layer and prickle cell layer

d. Granular layer and prickle cell layer

27 / 60

Larges amount of saliva is produced by :

a. Von Ebner glands

b. Submandibular glands

c. Sublingual glands

d. Parotid glands

28 / 60

Which of the following serves as a source of the cells which form the attachment epithelium?:

a. Reduced enamel epithelium & gingiva.

b. Dental sac.

c. Vestibular lamina.

d. Enamel cuticle.

29 / 60

Displasia គឺជា៖

a. Disorder of cell in mitosis

b. Disorder of cell distribution

c. Disorder of cell structure formation

d. Disorder of cell in migration

30 / 60

The parotid gland opens :

a. On the buccal mucosa opposite the maxillary second molar

b. At the side of the lingual frenum

c. At the caruncular

d. On the floor of the mouth

31 / 60

Labial and buccal miner salivary glands are:

a. Mixed

b. All the answers in this question are incorrect

c. Purely mucous

d. Purely serous

32 / 60

Masticatory mucosa is?

a. Ortho keratinized

b. Non keratinized

c. Sub keratinized

d. Para keratinized

33 / 60

Myoepithelial cell of an acini is:

a. kind of cell in a tonsil

b. kind of cell in a heart

c. kind of cell in a salivery gland

d. kind of contractile cell on an acini

34 / 60

A node of Ranvier is?

a. A constriction of the axon

b. A nerve receptor

c. A junction between two schwann cells

d. Characteristic of unmyelinated fibers

35 / 60

ចំពោះមនុស្សដែលមានសុខភាពល្អម្នាក់ lymph nodes ជាធម្មតា :

a. Free

b. Soft

c. Small

d. All the answers in this question are correct

36 / 60

Specialized cells stem from

a. Basement membrane

b. Basal layer and prickle cell layer

c. Cornified layer

d. Granular layer

37 / 60

The most important indication of malignant lesion is?

a. Paresthesia

b. Teeth movement

c. Tooth resorption

d. Pain

38 / 60

Keratohyalin granules are present in:

a. Granular layer and prickle cell layer

b. Basement membrane

c. Basal layer and prickle cell layer

d. Cornified layer

39 / 60

The oral mucosa ចែកចេញជា:

a. ពីរស្រទាប់ epithelium and connective tissue

b. បួនស្រទាប់ epithelium, connective tissue, lamina propria and corium

c. បួនស្រទាប់ epithelium, basal layer, connective tissue and corium

d. បីស្រទាប់ epithelium, connective tissue and lamina propria

40 / 60

The thinnest epithelium of oral cavity is found in the?

a. Buccal gingiva

b. Oral surface of lip

c. Lingual gingiva

d. Sublingual mucosa (floor of mouth)

41 / 60

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

a. Facial nerve.

b. Glossopharyngeal nerve.

c. Trigeminal nerve.

d. Chorda tympani.

42 / 60

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

a. IV

b. III

c. I

d. II

43 / 60

Inflammation of the lips is refered to as?

a. Stomatitis

b. Vincent angina

c. Glossitis migrican

d. Cheilitis

44 / 60

Hyperplasia គឺជា៖

a. Decrease in cell number of an organ

b. Increase in size of an organ or tissue

c. Decrease in size of an organ

d. Increase in cell number of an organ or tissue

45 / 60

The mucogingival junction is the junction of:

a. Palatine gingival & rougae zone.

b. Alveolar mucosa and attached gingiva.

c. Sulcular epithelium & free gingiva.

d. Sulcular epithelium & free gingiva.

46 / 60

Color of the normal gingiva is?

a. Pink

b. Red

c. Coral pink

d. All the answers in this question are incorrect

47 / 60

Supporting cells of taste buds are called as?

a. Acini

b. Sustenticular cells

c. Taste cells

d. Von Ebner cells

48 / 60

Excretory duct is

a. a duct from a parotide gland

b. a duct from a striated ducts

c. a duct from a sublimgual gland

d. a duct from a submandibular gland

49 / 60

The basket cells are also known as :

a. All the answers in this question are incorrect

b. Parenchymal cells

c. Endothelial cells

d. Myoepithelial cells

50 / 60

The sulcular epithelium:

a. Is nonkeratinized.

b. Has thick epithelial layer.

c. Is keratinized.

d. Has long epithelial ridges.

51 / 60

The sour taste come from:

a. Sodium chloride

b. Citric acids

c. Amino acids

d. All the answers in this question are incorrect

52 / 60

The taste buds are rubbed off and replaced every:

a. Year

b. Day

c. 7-10 days

d. 30 days

53 / 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

54 / 60

Glands are classified based on?

a. All the answers in this question are correct

b. Made of secretion

c. Their secretory product

d. Branching pattern of the ducts

55 / 60

Keratohyaline granules are more evident in?

a. Ortho keratinized

b. Para keratinized

c. Non keratinized

d. Keratinized

56 / 60

The spirilla bacteria Trepnema pallida causes:

a. Syphilis

b. Pneumonia

c. Tuberculosis

d. Abscesses

57 / 60

Hypertrophy គឺជា៖

a. Decrease in cell number of an organ

b. Increase in size of an organ

c. Increase in cell number of an organ

d. Decrease in size of an organ

58 / 60

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Which is not true about taste buds:

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

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

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

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

59 / 60

Which of the following is purely mucous :

a. Posterior lingual mucous glands

b. All the answers in this question are correct

c. Glossopalatine glands

d. Palatine glands

60 / 60

Bartholin’s duct is of:

a. Parotide gland

b. Sub-mandibular gland

c. Sub-lingual gland

d. Minor gland

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និស្សិតអាចប្រាប់មកកាន់ពួកយើងបានដើម្បីកែកំហុស ឬអំពីបញ្ហាដោយអចេតនាណាមួយដែលកើតមានកំឡុងពេលធ្វើតេស្ត