Oral Histology Test

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Oral Histology Test

1 / 60

Atrophy is?

a. Acute inflammation

b. Lack of oxygen for cells

c. Chronic inflammation

d. Lack of nutrition for cells

2 / 60

The basket cells are also known as :

a. Myoepithelial cells

b. Parenchymal cells

c. All the answers in this question are incorrect

d. Endothelial cells

3 / 60

Which of the following is true of the sulcular epithelium:

a. Is nonkeratinized.

b. Has submucosa.

c. Contain connective tissue papillae.

d. Consists of keratinized epithelium.

4 / 60

Wharton’s duct is of:

a. Sub-mandibular gland

b. Minor gland

c. Parotide gland

d. Sub-lingual gland

5 / 60

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

a. Facial nerve.

b. Glossopharyngeal nerve.

c. Chorda tympani.

d. Trigeminal nerve.

6 / 60

Parakeratinized epithelium is found in:

a. Ventral surface of tongue.

b. Gingiva.

c. Floor of the mouth.

d. Vestibular fornix.

7 / 60

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

a. Back

b. Top

c. Underneath

d. Tip and sides

8 / 60

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

a. Can migrate coronally.

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

c. Is impermeable to dyes and fluids.

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

9 / 60

Keratohyaline granules are more evident in?

a. Para keratinized

b. Ortho keratinized

c. Keratinized

d. Non keratinized

10 / 60

When do tonsils or adenoids need to be removed:

a. When a child is 10 years old

b. When a child is having learning problems

c. All the answers in this question are incorrect

d. When a child is 5 years old

11 / 60

Which papillae are completely keratinized?

a. Circumvallate

b. Filliform

c. Foliate

d. Fungiform

12 / 60

The most common cell in connective tissue proper is the?

a. Fibroblast

b. Mast cell

c. Macrophage

d. Lymphocyte

13 / 60

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

a. Fungiform.

b. Vallate.

c. Foliate.

d. Filliform.

14 / 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

15 / 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

16 / 60

Taste buds are in :

a. Teeth

b. Hard palate

c. Tongue

d. Soft palate

17 / 60

There are————— taste buds ,most of them on the tongue:

a. 100,000

b. 1,000

c. 10,000

d. 100

18 / 60

The mucogingival junction is the junction of:

a. Sulcular epithelium & free gingiva.

b. Alveolar mucosa and attached gingiva.

c. Sulcular epithelium & free gingiva.

d. Palatine gingival & rougae zone.

19 / 60

Stenon’s duct is of:

a. Minor gland

b. Sub-mandibular gland

c. Parotide gland

d. Sub-lingual gland

20 / 60

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

a. Bacilli

b. Staphylococci

c. Streptococci

d. Diplococci

21 / 60

Sulcular epithelium is formed of:

a. Columnar epithelium.

b. Nonkeratinized stratified squamous epithelium.

c. Orthokeratinized stratified squamous epithelium.

d. Parakeratinized stratified squamous epithelium.

22 / 60

Tongue papillae responsible for bitter taste sensation:

a. Fungiform papillae.

b. Circumvallate papillae.

c. Foliate papillae.

d. Filliform papillae.

23 / 60

Myoepithelial cell of an acini is:

a. kind of cell in a salivery gland

b. kind of cell in a heart

c. kind of contractile cell on an acini

d. kind of cell in a tonsil

24 / 60

Merkel cells are found in which of the following tissue?

a. Hypodermis

b. Epidermis

c. Reticular of dermis

d. Papillary layer of dermis

25 / 60

Which of the following is purely mucous :

a. Palatine glands

b. All the answers in this question are correct

c. Posterior lingual mucous glands

d. Glossopalatine glands

26 / 60

Acantholysis គឺជាៈ

a. Destroying desmosome in stratum basal cells

b. Destroying desmosome in stratum granulosome cells

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

d. Destroying desmosome in stratum spinosum cells

27 / 60

The three laterally paired major salivary glands are located :

a. Intra orally

b. In tongue

c. Extra orally

d. In neck

28 / 60

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Which is not true about taste buds:

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

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

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

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

29 / 60

Keratohyalin granules are present in:

a. Basal layer and prickle cell layer

b. Granular layer and prickle cell layer

c. Cornified layer

d. Basement membrane

30 / 60

The function of myoepithelial cells may be :

a. All the answers in this question are correct

b. Initiating contraction

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

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

31 / 60

Granular cell tumors of the adult is commonly seen on?

a. Gingiva

b. Tongue

c. Upper lip

d. Lower lip

32 / 60

The immunoglobulin present in saliva is :

a. IgE

b. IgM

c. IgG

d. IgA

33 / 60

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

a. Reduced enamel epithelium & gingiva.

b. Enamel cuticle.

c. Dental sac.

d. Vestibular lamina.

34 / 60

20 Which of the following contributes to the reddish coloration of the vermilion border?:

a. Existance of high number of langerhans cells.

b. Thichness of oral epithelium.

c. Vascularity of the lamina propria.

d. Epithelial keratinization.

35 / 60

Keratinized epithelium differs from nonkeratinized epithelium in that:

a. No tonofilaments are found in it.

b. It contains granular cell layer.

c. It does not contain basal lamina.

d. Contain a higher glycogen content.

36 / 60

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

a. A sticky top

b. Tiny hairs

c. All the answers in this question are correct

d. A hard shell

37 / 60

Bartholin’s duct is the name of :

a. Parotid duct

b. Submandibular duct

c. Sublingual duct

d. Lacrimal duct

38 / 60

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

a. Lips

b. Tongue

c. Roof of the soft plate

d. Oropharynx

39 / 60

Glands are classified based on?

a. Branching pattern of the ducts

b. All the answers in this question are correct

c. Made of secretion

d. Their secretory product

40 / 60

Difference between the skin and mucosa of cheek is?

a. Thick lamina propria on skin of cheek

b. Keratinized mucosa of cheek

c. Rete pegs

d. Thin lamina and non keratinized mucosa of cheek

41 / 60

Specialized cells stem from:

a. Basement membrane

b. Granular layer

c. Cornified layer

d. Basal layer and prickle cell layer

42 / 60

នៅក្នុងមាត់ មាន Tosils អ្វីខ្លះ:

a. Tubal tonsil

b. All the answers in this question are correct

c. Palatine tonsils and Lingual tonsil

d. Pharyngeal tonsil

43 / 60

Hypertrophy is?

a. Increase in size of an organ

b. Decrease in cell number of an organ

c. Decrease in size of an organ

d. Increase in cell number of an organ

44 / 60

Atrophy គឺជា៖

a. Lack of nutrition for cells

b. Lack of oxygen for cells

c. Chronic inflammation

d. Acute inflammation

45 / 60

Technical term for bacteria that live on dead matter is:

a. Saprophytes

b. Flagella

c. Viruses

d. Parasites

46 / 60

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

a. It moves apically with age.

b. It is derived entirely from ectomesenchyme.

c. Contains clear submucosa.

d. It moves occlusally with age.

47 / 60

What is the end of an axon called:

a. Terminal bouton

b. Perikaryon

c. Astrocyte

d. Ganglion

48 / 60

ទីតាំងរបស់ Pharyngeal tonsil គឺៈ

a. នៅលើ Pharynx

b. នៅលើ Larynx

c. នៅខាងលើនិងខាងក្រោយកន្លែងបត់នៃរន្ធច្រមុះទៅក្នុង Nasopharynx

d. នៅលើ Palate

49 / 60

B-cells ( lumphocytes ) can?

a. Secrete interferon

b. Suppress T-cells

c. Kill other cells

d. Give rise to plasma cells

50 / 60

Vesicle or Bullae of the mucous membrane or skin are seen in all the following except :

a. Herpes simplex

b. A granulocytosis

c. Herpes zoster

d. Pemphigus

51 / 60

The most important indication of malignant lesion is?

a. Pain

b. Paresthesia

c. Teeth movement

d. Tooth resorption

52 / 60

Hyperkeratosis is:

a. Increase in thickness of keratin layer or stratum corneum

b. Increase in wideness of keratin layer or stratum corneum

c. Increase in size of keratin layer or stratum corneum

d. Increase in longevity of keratin layer or stratum corneum

53 / 60

Minor salivary glands are present in the submucosa throughout the oral mucosa except the?

a. Gingiva and anterior part of hard palate

b. Tongue and soft palate

c. Retromolar area and hard palate

d. Lip and posterior third of the hard palate

54 / 60

The tonsillar ring or Waldeyer’s ring cosists of:

a. All the answers in this question are correct

b. The adenoid

c. The tonsil

d. The lingual tonsil

55 / 60

Parasites are types of:

a. Pathogenic virus

b. Pathogenic bacteria

c. Nonpathogenic bacteria

d. Disease

56 / 60

Von Ebner’s salivary gland is:

a. Parotide gland

b. Minor gland

c. Sub-mandibular gland

d. Sub-lingual gland

57 / 60

Sublingual glands is a :

a. Mixed glands

b. Mucous gland

c. Present in root of the tongue

d. Serous gland

58 / 60

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

a. 4th month

b. 1st month

c. 2nd month

d. 3rd month

59 / 60

The taste buds are rubbed off and replaced every:

a. Year

b. 30 days

c. Day

d. 7-10 days

60 / 60

Myoepithelial cells are present in :

a. Striate duct

b. Serous cells

c. Intercalated duct and terminal duct

d. Mucous cells

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និស្សិតអាចប្រាប់មកកាន់ពួកយើងបានដើម្បីកែកំហុស ឬអំពីបញ្ហាដោយអចេតនាណាមួយដែលកើតមានកំឡុងពេលធ្វើតេស្ត