Oral Histology Test

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Oral Histology Test

1 / 60

The normal P^Hof saliva is about :

a. 7.5

b. 9.5

c. 5.5

d. 8.5

2 / 60

Soft palate is?

a. Anterior pillar of tonsils

b. Posterior pillar of tonsils

c. Looser anterior portion of the palate

d. Looser posterior portion of the palate

3 / 60

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

a. Lysosomes.

b. Desmosomes.

c. Glycogen contents.

d. Keratohyaline granules.

4 / 60

The most common malignancy found in the oral cavity is :

a. Squamous cell carcinoma

b. Transitional cell carcinoma

c. Adenocarcinoma

d. Basal cell carcinoma

5 / 60

A node of Ranvier is?

a. A nerve receptor

b. Characteristic of unmyelinated fibers

c. A junction between two schwann cells

d. A constriction of the axon

6 / 60

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

a. IV

b. III

c. II

d. I

7 / 60

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

a. All the answers in this question are correct

b. A sticky top

c. Tiny hairs

d. A hard shell

8 / 60

Excretory duct is

a. a duct from a striated ducts

b. a duct from a submandibular gland

c. a duct from a sublimgual gland

d. a duct from a parotide gland

9 / 60

Bartholin’s duct is the name of :

a. Sublingual duct

b. Parotid duct

c. Lacrimal duct

d. Submandibular duct

10 / 60

Which of the following is true of the sulcular epithelium:

a. Consists of keratinized epithelium.

b. Is nonkeratinized.

c. Contain connective tissue papillae.

d. Has submucosa.

11 / 60

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

a. Congenital

b. Communicable

c. Occupational

d. Chronic

12 / 60

Submandibular gland is supplied by:

a. Lingual artery

b. Inferior alveolar artery

c. Submandibular artery

d. Facial artery

13 / 60

Partially keratinized papilla is?

a. Filliform

b. Foliate

c. Circumvallate

d. Fungiform

14 / 60

The most common cell in connective tissue proper is the?

a. Fibroblast

b. Mast cell

c. Lymphocyte

d. Macrophage

15 / 60

The three laterally paired major salivary glands are located :

a. Intra orally

b. In tongue

c. Extra orally

d. In neck

16 / 60

Which these is a common problem with tonsils:

a. They become swollen and They can become infected themselves

b. They can become infected themselves

c. They become swollen

d. They make an infection worse

17 / 60

Sulcular epithelium is formed of:

a. Parakeratinized stratified squamous epithelium.

b. Orthokeratinized stratified squamous epithelium.

c. Nonkeratinized stratified squamous epithelium.

d. Columnar epithelium.

18 / 60

Parasites are types of:

a. Nonpathogenic bacteria

b. Pathogenic virus

c. Pathogenic bacteria

d. Disease

19 / 60

The spirilla bacteria Trepnema pallida causes:

a. Pneumonia

b. Syphilis

c. Abscesses

d. Tuberculosis

20 / 60

The sulcular epithelium:

a. Is nonkeratinized.

b. Is keratinized.

c. Has long epithelial ridges.

d. Has thick epithelial layer.

21 / 60

Displasia គឺជា៖

a. Disorder of cell distribution

b. Disorder of cell in mitosis

c. Disorder of cell in migration

d. Disorder of cell structure formation

22 / 60

Cornified layer មាននៅក្នុងៈ

a. Parakeratinized epithelium

b. Orthokeratinized epithelium

c. Nonkeratinized epithelium

d. Keratinized epithelium

23 / 60

Wharton’s duct is of:

a. Parotide gland

b. Sub-lingual gland

c. Sub-mandibular gland

d. Minor gland

24 / 60

Salivary glands are not found in :

a. Nasopalatine canal

b. Posterior part of the hard palate

c. Anterior part of the hard palate

d. In mandible posterior to the 3rd molar

25 / 60

The taste buds are rubbed off and replaced every:

a. 7-10 days

b. Year

c. 30 days

d. Day

26 / 60

Taste buds are in

a. Hard palate

b. Teeth

c. Soft palate

d. Tongue

27 / 60

Secialized cells migrate:

a. to the upper layers

b. to the lower layer

c. to basement membrane

d. to lamina propria

28 / 60

Taste buds are not found on:

a. Circumvallate papillae.

b. Filliform papillae.

c. Fungiform papillae.

d. Foliate papillae.

29 / 60

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

a. Parotid glands

b. Submandibular glands

c. Sublingual glands

d. All the answers in this question are incorrect

30 / 60

Intercalated duct is :

a. a duct from a lumen

b. a duct from a paritide gland

c. a duct from acinus

d. a duct from a salivery gland

31 / 60

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

a. Parotid gland

b. Submandibular gland

c. All the answers in this question are incorrect

d. Sublingual gland

32 / 60

The structure of the oral mucosa is:

a. Epithelium and basement membrane.

b. Epithelium, lamina propria and basement membrane.

c. Epithelium, lamina propria and muscular layer.

d. Mucosa & submucosa.

33 / 60

Hyperkeratosis is:

a. Increase in size of keratin layer or stratum corneum

b. Increase in thickness of keratin layer or stratum corneum

c. Increase in wideness of keratin layer or stratum corneum

d. Increase in longevity of keratin layer or stratum corneum

34 / 60

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

a. Glossopharyngeal nerve.

b. Trigeminal nerve.

c. Facial nerve.

d. Chorda tympani.

35 / 60

Those papillae of the tongue which are the largest, having many taste buds and are associated with the duct of Von Ebner’s gland are:

a. Circumvallate.

b. Folliate.

c. Fungiform.

d. Filliform.

36 / 60

Which papillae are completely keratinized?

a. Fungiform

b. Foliate

c. Circumvallate

d. Filliform

37 / 60

Merkel cells are found in which of the following tissue?

a. Reticular of dermis

b. Papillary layer of dermis

c. Hypodermis

d. Epidermis

38 / 60

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Which is not true about taste buds:

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

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

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

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

39 / 60

Buccal mucosa is?

a. Keratinized

b. Para keratinized

c. Ortho keratinized

d. Non- keratinized

40 / 60

Stratum germinativum of the oral epithelium is the term given to?

a. Granular cell layer

b. Spinous cells and granular cells

c. Basal cell layer

d. Basal cells and parabasal spinous cslls

41 / 60

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

a. Roof of the soft plate

b. Lips

c. Oropharynx

d. Tongue

42 / 60

Which of the following is a transiant cell in the oral epithelium:

a. Merkel cell.

b. Melanocyte.

c. Langerhans cell.

d. Lymphocyte.

43 / 60

ទីតាំងរបស់ Pharyngeal tonsil គឺៈ

a. នៅខាងលើនិងខាងក្រោយកន្លែងបត់នៃរន្ធច្រមុះទៅក្នុង Nasopharynx

b. នៅលើ Palate

c. នៅលើ Pharynx

d. នៅលើ Larynx

44 / 60

The mode of attachment of the junctional epithelium is:

a. Basal lamina & hemidesmosome.

b. Basement membrane.

c. Odland's bodies.

d. Enamel cuticle.

45 / 60

The peripheral nervous system includes the:

a. Spinal cord

b. Somatic nervous system

c. Brain

d. Nuclei

46 / 60

Vesicle គឺជា

a. ពងទឹកលាយខ្ទុះ

b. ពងទឹកលាយឈាម

c. ពងខ្ទុះ

d. ពងទឹក

47 / 60

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

a. Dermoid cyst

b. Dentigerous cyst

c. Ranula

d. Follicular cyst

48 / 60

Bulla

a. large lesion

b. large pustule

c. Large vesicles that are confluent

d. Vesicle

49 / 60

What is a secretory cell in oral cavity:

a. Cell producing gastric acid

b. Cell producing saliva

c. Cell producing hormone

d. Cell producing histamine

50 / 60

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

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

b. Can migrate coronally.

c. Is impermeable to dyes and fluids.

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

51 / 60

The function of myoepithelial cells may be :

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

b. Initiating contraction

c. All the answers in this question are correct

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

52 / 60

The broadest basis for classifying epithelium into subgroups is?

a. Keratinized or not keratinized

b. Simple or stratified

c. Squamous cuboidal or columnar

d. Lining or granular

53 / 60

A long with a sore throat and fever ,which of these can be a symptom of an adenoid infection:

a. All the answers in this question are correct

b. Breathing mostly through the mouth, rather than through the nose

c. Noisy breathing while a wake

d. Snoring during sleep

e. Ear infections that keep coming back

54 / 60

How are infections of the tonsils or adenoids usually treat:

a. Antibiotic

b. All the answers in this question are incorrect

c. Acetaminophen

d. Aspirin

55 / 60

ទីតាំងរបស់ Tubal tonsil គឺៈ

a. នៅលើ Pharynx

b. នៅលើ Larynx

c. នៅលើ Palate

d. នៅខាងក្រោយនៃ opening of Eustachian tube គឺនៅក្នុង Nasopharynx

56 / 60

Which these may be a symptom of tonsillitis:

a. All the answers in this question are correct

b. Swollen lymph nodes in the neck

c. Bad breath

d. Fever

e. Sore throat

57 / 60

Keratohyalin is found in the?

a. Stratum reticularis

b. Stratum corneum

c. Stratum granulosum

d. Hyalin cartilage

58 / 60

Technical term for bacteria that live on dead matter is:

a. Saprophytes

b. Parasites

c. Viruses

d. Flagella

59 / 60

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

a. Papilloma

b. Hemangioma

c. Fibroma

d. Adenoma

60 / 60

Bartholin’s duct drains the:

a. Lacrimal gland

b. Parotid

c. Submandibular gland

d. Sublingual gland

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និស្សិតអាចប្រាប់មកកាន់ពួកយើងបានដើម្បីកែកំហុស ឬអំពីបញ្ហាដោយអចេតនាណាមួយដែលកើតមានកំឡុងពេលធ្វើតេស្ត