Oral Histology Test

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Oral Histology Test

1 / 60

Lamina densa of the gingival basement membrane is rich in?

a. Type IV collagen

b. Type I and II collagen

c. Type I collagen

d. Type III collagen

2 / 60

Larges amount of saliva is produced by :

a. Submandibular glands

b. Von Ebner glands

c. Parotid glands

d. Sublingual glands

3 / 60

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

a. Follicular cyst

b. Ranula

c. Dermoid cyst

d. Dentigerous cyst

4 / 60

Which of the following is not found in saliva :

a. Bicarbonate

b. Triypsine

c. Phosphate

d. Lysozyme

5 / 60

What is the end of an axon called:

a. Perikaryon

b. Astrocyte

c. Terminal bouton

d. Ganglion

6 / 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

7 / 60

Healthy line is represented in:

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

b. Free gingival groove.

c. Junction of the buccal and labial mucosa.

d. Mucogingival junction.

8 / 60

The mucogingival junction is the junction of:

a. Alveolar mucosa and attached gingiva.

b. Palatine gingival & rougae zone.

c. Sulcular epithelium & free gingiva.

d. Sulcular epithelium & free gingiva.

9 / 60

Granular cell tumors of the adult is commonly seen on?

a. Tongue

b. Upper lip

c. Gingiva

d. Lower lip

10 / 60

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

a. Vallate.

b. Foliate.

c. Filliform.

d. Fungiform.

11 / 60

Keratohyaline granules are found in?

a. Stratum granulosum

b. Prickle cell layer

c. Stratum basale

d. Stratum spinosum

12 / 60

Facial artery is the branch of the:

a. Superficial temporal

b. External carotid artery

c. Internal carotid artery

13 / 60

The total amount of saliva secreted by all the salivary glands about 30% is secreted by the :

a. Sublingual gland

b. Submandibular gland

c. Parotid gland

d. All the answers in this question are incorrect

14 / 60

Keratohyalin granules are present in:

a. Granular layer and prickle cell layer

b. Cornified layer

c. Basal layer and prickle cell layer

d. Basement membrane

15 / 60

The lymph nodes មានតួនាទី :

a. ច្រោះ Proteins

b. ច្រោះ Toxic products

c. ច្រោះ Glucose

d. ច្រោះ Lipids

16 / 60

Salivary glands are not found in :

a. In mandible posterior to the 3rd molar

b. Posterior part of the hard palate

c. Nasopalatine canal

d. Anterior part of the hard palate

17 / 60

Masticatory mucosa in the oral cavity covers the?

a. Alveolar mucosa and vestibular fornix

b. Gingiva and hard palate

c. Lip and cheek

d. Floor of the mouth and soft palate

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

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.

19 / 60

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

a. Fibroblast.

b. Plasma cell.

c. Keratinocyte.

d. Osteoblasts.

20 / 60

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

a. Reduced enamel epithelium & gingiva.

b. Vestibular lamina.

c. Dental sac.

d. Enamel cuticle.

21 / 60

Hypertrophy គឺជា៖

a. Decrease in size of an organ

b. Increase in cell number of an organ

c. Increase in size of an organ

d. Decrease in cell number of an organ

22 / 60

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

a. Pemphigus

b. Herpes simplex

c. Herpes zoster

d. A granulocytosis

23 / 60

Keratohyalin is found in the?

a. Stratum reticularis

b. Stratum granulosum

c. Hyalin cartilage

d. Stratum corneum

24 / 60

The taste buds are rubbed off and replaced every:

a. Year

b. 7-10 days

c. 30 days

d. Day

25 / 60

Intercalated duct is :

a. a duct from acinus

b. a duct from a paritide gland

c. a duct from a salivery gland

d. a duct from a lumen

26 / 60

The connective tissue of the gingiva is known as the?

a. Lamina dura

b. Dental cuticle

c. Lamina propria

d. Fibroblasts

27 / 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

28 / 60

The spirilla bacteria Trepnema pallida causes:

a. Pneumonia

b. Syphilis

c. Tuberculosis

d. Abscesses

29 / 60

Epithelium of oral mucous membrane is?

a. Non keratinized

b. Only parakeratinized

c. Ortho,Para and nonkeratinized

d. Keratinized

30 / 60

The mode of attachment of the junctional epithelium is:

a. Enamel cuticle.

b. Basal lamina & hemidesmosome.

c. Odland's bodies.

d. Basement membrane.

31 / 60

Diskeratosis គឺជាៈ

a. Abnormality of migration and cells mitosis.

b. Abnormality of orientation and development of epithelial cells.

c. Abnormality of structure and development of epithelial cells.

d. Abnormality of orientation and cells mitosis.

32 / 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 thickness of keratin layer or stratum corneum

d. Increase in longevity of keratin layer or stratum corneum

33 / 60

The most common malignancy found in the oral cavity is :

a. Adenocarcinoma

b. Transitional cell carcinoma

c. Squamous cell carcinoma

d. Basal cell carcinoma

34 / 60

Submandibular gland is supplied by:

a. Inferior alveolar artery

b. Facial artery

c. Submandibular artery

d. Lingual artery

35 / 60

Superficial layer មាននៅក្នុងៈ

a. Keratinized epithelium

b. Nonkeratinized epithelium

c. Orthokeratinized epithelium

d. Parakeratinized epithelium

36 / 60

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

a. All the answers in this question are incorrect

b. Sublingual gland

c. Parotid gland

d. Submandibular gland

37 / 60

Myoepithelial cells are present in :

a. Serous cells

b. Mucous cells

c. Striate duct

d. Intercalated duct and terminal duct

38 / 60

Taste buds are in

a. Tongue

b. Hard palate

c. Soft palate

d. Teeth

39 / 60

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

a. Gingiva and alveolar mucosa

b. Hard palate and gingiva

c. Buccal and alveolar mucosa

d. Hard and soft palate

40 / 60

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

a. Trigeminal nerve.

b. Chorda tympani.

c. Facial nerve.

d. Glossopharyngeal nerve.

41 / 60

Taste buds are in :

a. Hard palate

b. Tongue

c. Soft palate

d. Teeth

42 / 60

Von Ebner’s salivary gland is:

a. Parotide gland

b. Sub-lingual gland

c. Minor gland

d. Sub-mandibular gland

43 / 60

When do tonsils or adenoids need to be removed:

a. All the answers in this question are incorrect

b. When a child is 10 years old

c. When a child is having learning problems

d. When a child is 5 years old

44 / 60

Tonsils are on the back of the throat.Where are the adenoids located:

a. Under the tongue

b. All the answers in this question are incorrect

c. In the ears

d. Behind the nose and roof of the mouth

45 / 60

Sublingual glands is a :

a. Mixed glands

b. Serous gland

c. Present in root of the tongue

d. Mucous gland

46 / 60

All of the following is lined by stratified squamous epithelium except?

a. Oropharynx

b. Roof of the soft plate

c. Tongue

d. Lips

47 / 60

Bartholin’s duct is of:

a. Sub-mandibular gland

b. Sub-lingual gland

c. Minor gland

d. Parotide gland

48 / 60

Bartholin’s duct drains the:

a. Parotid

b. Sublingual gland

c. Submandibular gland

d. Lacrimal gland

49 / 60

Technical term for bacteria that live on dead matter is:

a. Saprophytes

b. Flagella

c. Viruses

d. Parasites

50 / 60

The mucosa of the dorsal surface of the tongue is:

a. Masticatory mucosa.

b. Linning mucosa.

c. Smooth surface.

d. Spesialized mucosa.

51 / 60

Secialized cells migrate:

a. to the upper layers

b. to basement membrane

c. to lamina propria

d. to the lower layer

52 / 60

Specialized cells stem from

a. Basal layer and prickle cell layer

b. Granular layer

c. Basement membrane

d. Cornified layer

53 / 60

Acantholysis គឺជាៈ

a. Destroying desmosome in stratum spinosum cells

b. Swelling in intracellular space destroying desmosome in stratum spinosum cells

c. Destroying desmosome in stratum basal cells

d. Destroying desmosome in stratum granulosome cells

54 / 60

The oral mucosa ចែកចេញជា:

a. បីស្រទាប់ epithelium, connective tissue and lamina propria

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

c. ពីរស្រទាប់ epithelium and connective tissue

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

55 / 60

The structure of the oral mucosa is:

a. Epithelium, lamina propria and basement membrane.

b. Epithelium, lamina propria and muscular layer.

c. Mucosa & submucosa.

d. Epithelium and basement membrane.

56 / 60

Basement membrane?

a. Consists of desmosomes and hemidesmosomes

b. Consists of lamina densa and lamina lucida

c. Consists lurati hyaline granules

d. Contains lamina lucida and lamina dura

57 / 60

Masticatory mucosa is?

a. Sub keratinized

b. Non keratinized

c. Ortho keratinized

d. Para keratinized

58 / 60

The buccal mucosa:

a. It is firmly attached to the underlying tissues.

b. Has a keratinized epithelium.

c. Has numerous connective tissue papillae.

d. Is continuous with the gingival mucosa.

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

Which of the following is found in the cerebellum:

a. Neuroglia

b. Ganglion

c. Schwann cells

d. Basket cells

Your score is

The average score is 92%

Any comments?

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និស្សិតអាចប្រាប់មកកាន់ពួកយើងបានដើម្បីកែកំហុស ឬអំពីបញ្ហាដោយអចេតនាណាមួយដែលកើតមានកំឡុងពេលធ្វើតេស្ត