Oral Histology Test

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Oral Histology Test

1 / 60

The onecelled microorganisms also known as germs or microbes are:

a. Viruses

b. Bacteria

c. Fungi

d. Cilia

2 / 60

The mucosa of the dorsal surface of the tongue is:

a. Masticatory mucosa.

b. Linning mucosa.

c. Smooth surface.

d. Spesialized mucosa.

3 / 60

Lamina densa of the gingival basement membrane is rich in?

a. Type I collagen

b. Type IV collagen

c. Type I and II collagen

d. Type III collagen

4 / 60

Parakeratinized epithelium is found in:

a. Floor of the mouth.

b. Gingiva.

c. Vestibular fornix.

d. Ventral surface of tongue.

5 / 60

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

a. All the answers in this question are incorrect

b. Under the tongue

c. Behind the nose and roof of the mouth

d. In the ears

6 / 60

The taste buds are rubbed off and replaced every:

a. 7-10 days

b. Day

c. 30 days

d. Year

7 / 60

Parasites are types of:

a. Pathogenic bacteria

b. Nonpathogenic bacteria

c. Pathogenic virus

d. Disease

8 / 60

Diskeratosis គឺជាៈ

a. Abnormality of orientation and cells mitosis.

b. Abnormality of structure and development of epithelial cells.

c. Abnormality of orientation and development of epithelial cells.

d. Abnormality of migration and cells mitosis.

9 / 60

Striated duct is:

a. a duct from a salivery gland

b. a duct from a submandibular gland

c. a duct from a system duct

d. a duct from intercalated ducts

10 / 60

The parotid gland opens :

a. At the side of the lingual frenum

b. At the caruncular

c. On the floor of the mouth

d. On the buccal mucosa opposite the maxillary second molar

11 / 60

Most cases of tonsillitis occur in which age group:

a. 21 to 40

b. 10 and under

c. 11 to 21

d. 40 to 65

12 / 60

Myoepithelial cells are present in :

a. Striate duct

b. Mucous cells

c. Intercalated duct and terminal duct

d. Serous cells

13 / 60

Which of the following appears to play an important role in attachment of its cells:

a. Lysosomes.

b. Keratohyaline granules.

c. Glycogen contents.

d. Desmosomes.

14 / 60

Myoepithelial cell of an acini is:

a. kind of contractile cell on an acini

b. kind of cell in a salivery gland

c. kind of cell in a heart

d. kind of cell in a tonsil

15 / 60

The parotid glands open through the :

a. Bartholin’s duct

b. Blandin’s duct

c. Wharton’s duct

d. Stensen’s duct

16 / 60

Hypertrophy is?

a. Decrease in size of an organ

b. Increase in cell number of an organ

c. Decrease in cell number of an organ

d. Increase in size of an organ

17 / 60

A disease that is transmitted from one person to another by contact is said to be:

a. Communicable

b. Chronic

c. Occupational

d. Congenital

18 / 60

Granular layer មាននៅក្នុងៈ

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

b. Keratinized epithelium

c. Non-keratinized epithelium

d. Para-keratinized epithelium

19 / 60

Circumvallate papillae are supplied by?

a. Hypoglossal nerve

b. Glossopharyngeal nerve

c. Vagus

d. Lingual nerve

20 / 60

The sour taste come from:

a. Citric acids

b. All the answers in this question are incorrect

c. Amino acids

d. Sodium chloride

21 / 60

Granular cell myoblastoma of tongue is?

a. Malignant tumor of the tongue

b. Benign tumor

c. Lymphatic enlargement of the tongue

d. Developmental anomaly of the tongue.

22 / 60

Color of the normal gingiva is?

a. Pink

b. Red

c. All the answers in this question are incorrect

d. Coral pink

23 / 60

ទីតាំងរបស់ Pharyngeal tonsil គឺៈ

a. នៅលើ Pharynx

b. នៅលើ Larynx

c. នៅលើ Palate

d. នៅខាងលើនិងខាងក្រោយកន្លែងបត់នៃរន្ធច្រមុះទៅក្នុង Nasopharynx

24 / 60

Cornified layer មាននៅក្នុងៈ

a. Parakeratinized epithelium

b. Keratinized epithelium

c. Nonkeratinized epithelium

d. Orthokeratinized epithelium

25 / 60

The normal P^Hof saliva is about :

a. 7.5

b. 8.5

c. 9.5

d. 5.5

26 / 60

Secialized cells migrate:

a. to the lower layer

b. to the upper layers

c. to lamina propria

d. to basement membrane

27 / 60

Taste buds are in

a. Teeth

b. Tongue

c. Hard palate

d. Soft palate

28 / 60

Keratohyalin is found in the?

a. Hyalin cartilage

b. Stratum corneum

c. Stratum reticularis

d. Stratum granulosum

29 / 60

The peripheral nervous system includes the:

a. Spinal cord

b. Nuclei

c. Brain

d. Somatic nervous system

30 / 60

Basement membrane នៅចន្លោះ:

a. Epithelium and lamina propria

b. Epithelium and Bone

c. Lamina propria and submucosa

d. Epithelium and submucosa

31 / 60

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

a. Herpes simplex

b. Pemphigus

c. A granulocytosis

d. Herpes zoster

32 / 60

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

a. Merkel cell

b. Lymphocyte

c. Melanocyte

d. Langerhans cell

33 / 60

The mucogingival junction is the junction of:

a. Sulcular epithelium & free gingiva.

b. Alveolar mucosa and attached gingiva.

c. Palatine gingival & rougae zone.

d. Sulcular epithelium & free gingiva.

34 / 60

What is a secretory cell in oral cavity:

a. Cell producing hormone

b. Cell producing saliva

c. Cell producing histamine

d. Cell producing gastric acid

35 / 60

Basement membrane នៅចន្លោះ

a. Epithelium and submucosa

b. Epithelium and lamina propria

c. Epithelium and Bone

d. Lamina propria and submucosa

36 / 60

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

a. Dermoid cyst

b. Ranula

c. Follicular cyst

d. Dentigerous cyst

37 / 60

Atrophy គឺជា៖

a. Lack of nutrition for cells

b. Acute inflammation

c. Lack of oxygen for cells

d. Chronic inflammation

38 / 60

The thinnest epithelium of oral cavity is found in the?

a. Oral surface of lip

b. Sublingual mucosa (floor of mouth)

c. Buccal gingiva

d. Lingual gingiva

39 / 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

40 / 60

Which one of the following epithelium is least common?

a. Stratified columnar

b. Transitional

c. Simple columnar

d. Pseudo stratified columnar ( ciliated )

41 / 60

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Fungiform papillae:

a. Are seen as white spots.

b. Have a lamina propria which is poorly vascularized.

c. Have a stratum corneum.

d. Carry taste buds.

42 / 60

The total volume of saliva secreted daily is :

a. 1.5 litres

b. 3 litres

c. 750 ml

d. 2 litres

43 / 60

Bartholin’s duct is the name of :

a. Parotid duct

b. Lacrimal duct

c. Sublingual duct

d. Submandibular duct

44 / 60

The mode of attachment of the junctional epithelium is:

a. Odland's bodies.

b. Basal lamina & hemidesmosome.

c. Basement membrane.

d. Enamel cuticle.

45 / 60

The immunoglobulin present in saliva is :

a. IgA

b. IgG

c. IgE

d. IgM

46 / 60

The tonsillar lymph node is situated at the level of?

a. Clavicle

b. Angle of the mandible

c. Jugulodigastric crossing

d. Vertebrae

47 / 60

Atrophy is?

a. Chronic inflammation

b. Lack of oxygen for cells

c. Acute inflammation

d. Lack of nutrition for cells

48 / 60

The lymph nodes មានតួនាទី :

a. ច្រោះ Toxic products

b. ច្រោះ Lipids

c. ច្រោះ Glucose

d. ច្រោះ Proteins

49 / 60

Pus forming bacteria that cause strep throat and blood poisoning are:

a. Diplococci

b. Staphylococci

c. Bacilli

d. Streptococci

50 / 60

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

a. Sublingual and Parotid

b. Submandibular and Parotid

c. Von Ebner

d. Submandibular and Sublingual

51 / 60

The function of myoepithelial cells may be :

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

b. Initiating contraction

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

d. All the answers in this question are correct

52 / 60

The tonsillar ring or Waldeyer’s ring cosists of:

a. The adenoid

b. The lingual tonsil

c. The tonsil

d. All the answers in this question are correct

53 / 60

The humans, the lining epithelium of the esophagus is?

a. Transitional

b. Stratified squamous, keratinized

c. Simple columnar

d. Stratified squamous, non-keratinized

54 / 60

Which of the following is not found in saliva :

a. Phosphate

b. Bicarbonate

c. Triypsine

d. Lysozyme

55 / 60

Buccal mucosa is?

a. Para keratinized

b. Keratinized

c. Non- keratinized

d. Ortho keratinized

56 / 60

The mucous membrane of cheek and lips?

a. It attached to buccinators muscle in cheek

b. A and B are correct

c. All the answers in this question are incorrect

d. It attached to orbicularis oris in lips

57 / 60

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

a. Parotid gland

b. Sublingual gland

c. All the answers in this question are incorrect

d. Submandibular gland

58 / 60

Keratohyalin granules are present in:

a. Granular layer and prickle cell layer

b. Basement membrane

c. Cornified layer

d. Basal layer and prickle cell layer

59 / 60

The sweet taste come from:

a. All the answers in this question are correct

b. Sugars

c. Alcohols

d. Amino acids

60 / 60

The connective tissue of the gingiva is known as the?

a. Fibroblasts

b. Dental cuticle

c. Lamina propria

d. Lamina dura

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និស្សិតអាចប្រាប់មកកាន់ពួកយើងបានដើម្បីកែកំហុស ឬអំពីបញ្ហាដោយអចេតនាណាមួយដែលកើតមានកំឡុងពេលធ្វើតេស្ត