Oral Histology Test

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Oral Histology Test

1 / 60

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

a. A sticky top

b. A hard shell

c. Tiny hairs

d. All the answers in this question are correct

2 / 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. Enamel cuticle.

d. Dental sac.

3 / 60

The lymph nodes គឺជា bean-shaped bodies នៅជាក្រុមតាមបណ្តោយ:

a. Veins

b. Connective Lymphatic vessels

c. Capillary

d. Arteries

4 / 60

Bartholin’s duct drains the:

a. Sublingual gland

b. Parotid

c. Submandibular gland

d. Lacrimal gland

5 / 60

The somatic nervous system is part of the:

a. Sympathetic nervous system

b. Autonomic nervous system

c. All the answers in this question are incorrect

d. Parasympathetic nervous system

6 / 60

Granular cell tumors of the adult is commonly seen on?

a. Upper lip

b. Tongue

c. Lower lip

d. Gingiva

7 / 60

Specialized cells migrate

a. to basement membrane

b. to the upper layers

c. to lamina propria

d. to the lower layer

8 / 60

Parakeratinized epithelium is found in:

a. Ventral surface of tongue.

b. Gingiva.

c. Floor of the mouth.

d. Vestibular fornix.

9 / 60

The tonsillar lymph node is situated at the level of?

a. Vertebrae

b. Jugulodigastric crossing

c. Angle of the mandible

d. Clavicle

10 / 60

Bartholin’s duct is the name of :

a. Parotid duct

b. Submandibular duct

c. Sublingual duct

d. Lacrimal duct

11 / 60

Myoepithelial cell of an acini is:

a. kind of cell in a salivery gland

b. kind of cell in a tonsil

c. kind of contractile cell on an acini

d. kind of cell in a heart

12 / 60

Bartholin’s duct is of:

a. Parotide gland

b. Sub-lingual gland

c. Sub-mandibular gland

d. Minor gland

13 / 60

Hypertrophy គឺជា៖

a. Decrease in cell number of an organ

b. Increase in size of an organ

c. Decrease in size of an organ

d. Increase in cell number of an organ

14 / 60

What is a secretory cell in oral cavity:

a. Cell producing saliva

b. Cell producing hormone

c. Cell producing gastric acid

d. Cell producing histamine

15 / 60

How many neurones are in the body of man:

a. 10,000

b. 10,000,000,000

c. 10,000,000

d. 10,000,000,000,000

16 / 60

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

a. It shifts apically with age.

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

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

d. Its epithelial cells are keratinized stratified squamous.

17 / 60

Labial and buccal miner salivary glands are:

a. Purely serous

b. Purely mucous

c. Mixed

d. All the answers in this question are incorrect

18 / 60

Superficial layer មាននៅក្នុងៈ

a. Nonkeratinized epithelium

b. Keratinized epithelium

c. Parakeratinized epithelium

d. Orthokeratinized epithelium

19 / 60

Technical term for bacteria that live on dead matter is:

a. Viruses

b. Flagella

c. Parasites

d. Saprophytes

20 / 60

The most common malignancy found in the oral cavity is :

a. Squamous cell carcinoma

b. Adenocarcinoma

c. Transitional cell carcinoma

d. Basal cell carcinoma

21 / 60

The taste buds are rubbed off and replaced every:

a. 7-10 days

b. Year

c. Day

d. 30 days

22 / 60

The p^H of whole saliva is :

a. 7.0 – 8.2

b. 1.2 – 2.4

c. 3.0 – 5.6

d. 6.7 – 7.4

23 / 60

Specialized cells stem from:

a. Granular layer

b. Basal layer and prickle cell layer

c. Cornified layer

d. Basement membrane

24 / 60

The cells most frequently found in a granuloma are :

a. Mast cells

b. Giant cells

c. Lymphocytes

d. Neutrophil

25 / 60

The mode of attachment of the junctional epithelium is:

a. Basement membrane.

b. Enamel cuticle.

c. Odland's bodies.

d. Basal lamina & hemidesmosome.

26 / 60

Secialized cells migrate:

a. to the upper layers

b. to basement membrane

c. to the lower layer

d. to lamina propria

27 / 60

Most areas of oral mucosa are:

a. ParaKeratiniezd stratified epithelium

b. Keratiniezd stratified epithelium

c. NonKeratiniezd stratified epithelium

d. OrthoKeratiniezd stratified epithelium

28 / 60

Parasites are types of:

a. Nonpathogenic bacteria

b. Disease

c. Pathogenic bacteria

d. Pathogenic virus

29 / 60

What do your tonsils and adenoids do:

a. They are part of your immune system

b. They don’t do anything

c. They help your nose with the sense of smell

d. All the answers in this question are incorrect

30 / 60

Which of the following is found in the cerebellum:

a. Neuroglia

b. Ganglion

c. Basket cells

d. Schwann cells

31 / 60

Submandibular gland is supplied by:

a. Inferior alveolar artery

b. Facial artery

c. Submandibular artery

d. Lingual artery

32 / 60

Hypertrophy is?

a. Decrease in size of an organ

b. Decrease in cell number of an organ

c. Increase in size of an organ

d. Increase in cell number of an organ

33 / 60

The areas of the tongue with the most taste buds is the:

a. Top

b. Underneath

c. Tip and sides

d. Back

34 / 60

ទីតាំងរបស់ Pharyngeal tonsil គឺៈ

a. នៅលើ Larynx

b. នៅលើ Pharynx

c. នៅលើ Palate

d. នៅខាងលើនិងខាងក្រោយកន្លែងបត់នៃរន្ធច្រមុះទៅក្នុង Nasopharynx

35 / 60

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

a. III

b. II

c. IV

d. I

36 / 60

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

a. Merkel cell

b. Langerhans cell

c. Melanocyte

d. Lymphocyte

37 / 60

The thinnest epithelium of oral cavity is found in the?

a. Lingual gingiva

b. Sublingual mucosa (floor of mouth)

c. Buccal gingiva

d. Oral surface of lip

38 / 60

The connective tissue of the gingiva is known as the?

a. Dental cuticle

b. Fibroblasts

c. Lamina dura

d. Lamina propria

39 / 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.

40 / 60

Which of the following is true regarding the dentogingival junction?:

a. It is derived entirely from ectomesenchyme.

b. It moves occlusally with age.

c. Contains clear submucosa.

d. It moves apically with age.

41 / 60

Bulla:

a. large lesion

b. Large vesicles that are confluent

c. Vesicle

d. large pustule

42 / 60

Bacteria that cause disease are called:

a. Protozoa

b. Nonpathogenic

c. Pathogenic

d. Saprophytes

43 / 60

Lumen is:

a. a central opening of an oral cavity

b. a cental opening of an acini

c. a central opening of a tooth

d. a central opening of a gland

44 / 60

Larges amount of saliva is produced by :

a. Submandibular glands

b. Sublingual glands

c. Parotid glands

d. Von Ebner glands

45 / 60

Salivary glands are not found in :

a. Posterior part of the hard palate

b. In mandible posterior to the 3rd molar

c. Nasopalatine canal

d. Anterior part of the hard palate

46 / 60

The miner salivary glands begin their development in fetal life during :

a. 2nd month

b. 1st month

c. 3rd month

d. 4th month

47 / 60

The structure of the oral mucosa is:

a. Mucosa & submucosa.

b. Epithelium, lamina propria and basement membrane.

c. Epithelium, lamina propria and muscular layer.

d. Epithelium and basement membrane.

48 / 60

The sulcular epithelium:

a. Has thick epithelial layer.

b. Has long epithelial ridges.

c. Is keratinized.

d. Is nonkeratinized.

49 / 60

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

a. Buccal mucosa.

b. Attached gingiva.

c. Vestibular fornix.

d. Hard palate.

50 / 60

The three laterally paired major salivary glands are located :

a. In neck

b. Extra orally

c. Intra orally

d. In tongue

51 / 60

The peripheral nervous system includes the:

a. Spinal cord

b. Nuclei

c. Somatic nervous system

d. Brain

52 / 60

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

a. Spinous cells and granular cells

b. Granular cell layer

c. Basal cell layer

d. Basal cells and parabasal spinous cslls

53 / 60

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

a. Keratinocytes

b. Melanocytes

c. Myoepithelial cell

d. Mast cells

54 / 60

Glands are classified based on?

a. All the answers in this question are correct

b. Branching pattern of the ducts

c. Their secretory product

d. Made of secretion

55 / 60

ចំពោះមនុស្សដែលមានសុខភាពល្អម្នាក់ lymph nodes ជាធម្មតា :

a. Small

b. All the answers in this question are correct

c. Soft

d. Free

56 / 60

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

a. Gingiva and alveolar mucosa

b. Hard and soft palate

c. Hard palate and gingiva

d. Buccal and alveolar mucosa

57 / 60

Inflammation of the lips is refered to as?

a. Cheilitis

b. Glossitis migrican

c. Vincent angina

d. Stomatitis

58 / 60

Keratohyalin granules are present in

a. Basement membrane

b. Cornified layer

c. Granular layer and prickle cell layer

d. Basal layer and prickle cell layer

59 / 60

B-cells ( lumphocytes ) can?

a. Give rise to plasma cells

b. Kill other cells

c. Suppress T-cells

d. Secrete interferon

60 / 60

Keratohyalin granules are present in:

a. Granular layer and prickle cell layer

b. Basal layer and prickle cell layer

c. Cornified layer

d. Basement membrane

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និស្សិតអាចប្រាប់មកកាន់ពួកយើងបានដើម្បីកែកំហុស ឬអំពីបញ្ហាដោយអចេតនាណាមួយដែលកើតមានកំឡុងពេលធ្វើតេស្ត