Oral Histology Test

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Oral Histology Test

1 / 60

Excretory duct is

a. a duct from a submandibular gland

b. a duct from a striated ducts

c. a duct from a sublimgual gland

d. a duct from a parotide gland

2 / 60

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

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

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

c. Its epithelial cells are keratinized stratified squamous.

d. It shifts apically with age.

3 / 60

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

a. 3rd month

b. 4th month

c. 2nd month

d. 1st month

4 / 60

The buccal mucosa:

a. Has numerous connective tissue papillae.

b. Has a keratinized epithelium.

c. It is firmly attached to the underlying tissues.

d. Is continuous with the gingival mucosa.

5 / 60

The mucogingival junction is the junction of:

a. Palatine gingival & rougae zone.

b. Sulcular epithelium & free gingiva.

c. Alveolar mucosa and attached gingiva.

d. Sulcular epithelium & free gingiva.

6 / 60

Technical term for bacteria that live on dead matter is:

a. Flagella

b. Parasites

c. Saprophytes

d. Viruses

7 / 60

Specialized cells stem from:

a. Granular layer

b. Basal layer and prickle cell layer

c. Cornified layer

d. Basement membrane

8 / 60

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

a. Sublingual gland

b. Parotid gland

c. All the answers in this question are incorrect

d. Submandibular gland

9 / 60

In which area the connective tissue papillae are long & numerous?:

a. Floor of the mouth.

b. Gingiva.

c. Buccal mucosa.

d. Alveolar mucosa.

10 / 60

Glands are classified based on?

a. Made of secretion

b. All the answers in this question are correct

c. Their secretory product

d. Branching pattern of the ducts

11 / 60

Sulcular epithelium is formed of:

a. Nonkeratinized stratified squamous epithelium.

b. Columnar epithelium.

c. Orthokeratinized stratified squamous epithelium.

d. Parakeratinized stratified squamous epithelium.

12 / 60

The p^H of whole saliva is :

a. 6.7 – 7.4

b. 1.2 – 2.4

c. 3.0 – 5.6

d. 7.0 – 8.2

13 / 60

Soft palate is?

a. Looser anterior portion of the palate

b. Posterior pillar of tonsils

c. Anterior pillar of tonsils

d. Looser posterior portion of the palate

14 / 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.

15 / 60

The immunoglobulin present in saliva is :

a. IgA

b. IgM

c. IgE

d. IgG

16 / 60

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

a. IV

b. III

c. II

d. I

17 / 60

Atrophy is?

a. Chronic inflammation

b. Acute inflammation

c. Lack of oxygen for cells

d. Lack of nutrition for cells

18 / 60

Inflammation of the lips is refered to as?

a. Cheilitis

b. Glossitis migrican

c. Stomatitis

d. Vincent angina

19 / 60

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

a. It moves apically with age.

b. It moves occlusally with age.

c. It is derived entirely from ectomesenchyme.

d. Contains clear submucosa.

20 / 60

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

a. Snoring during sleep

b. All the answers in this question are correct

c. Ear infections that keep coming back

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

e. Noisy breathing while a wake

21 / 60

Labial and buccal miner salivary glands are:

a. All the answers in this question are incorrect

b. Mixed

c. Purely serous

d. Purely mucous

22 / 60

The cells most frequently found in a granuloma are :

a. Neutrophil

b. Mast cells

c. Giant cells

d. Lymphocytes

23 / 60

The broadest basis for classifying epithelium into subgroups is?

a. Squamous cuboidal or columnar

b. Keratinized or not keratinized

c. Lining or granular

d. Simple or stratified

24 / 60

Bulla:

a. Large vesicles that are confluent

b. large pustule

c. large lesion

d. Vesicle

25 / 60

The mucous membrane of cheek and lips?

a. It attached to orbicularis oris in lips

b. It attached to buccinators muscle in cheek

c. A and B are correct

d. All the answers in this question are incorrect

26 / 60

Myoepithelial cells are present in :

a. Serous cells

b. Intercalated duct and terminal duct

c. Mucous cells

d. Striate duct

27 / 60

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

a. Facial nerve.

b. Trigeminal nerve.

c. Glossopharyngeal nerve.

d. Chorda tympani.

28 / 60

ទីតាំងរបស់ Tubal tonsil គឺៈ

a. នៅលើ Pharynx

b. នៅខាងក្រោយនៃ opening of Eustachian tube គឺនៅក្នុង Nasopharynx

c. នៅលើ Larynx

d. នៅលើ Palate

29 / 60

How are infections of the tonsils or adenoids usually treat:

a. Acetaminophen

b. All the answers in this question are incorrect

c. Aspirin

d. Antibiotic

30 / 60

Which papillae are completely keratinized?

a. Filliform

b. Foliate

c. Fungiform

d. Circumvallate

31 / 60

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

a. Sublingual and Parotid

b. Von Ebner

c. Submandibular and Parotid

d. Submandibular and Sublingual

32 / 60

Which of the following are not usually found in the keratinocytes of the stratum spinosum of keratinized oral epithelium?:

a. Ribosomes.

b. Keratohyaline granules.

c. Membrane coating granules.

d. Tonofibrils.

33 / 60

Facial artery is the branch of the:

a. External carotid artery

b. Internal carotid artery

c. Superficial temporal

34 / 60

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

a. Attached gingiva.

b. Buccal mucosa.

c. Vestibular fornix.

d. Hard palate.

35 / 60

Disease in plant or animal tissue is caused by:

a. Pathogenic bacteria

b. Nonpathogenic bacteria

c. Acidophilus

d. Saprophytes

36 / 60

Striated duct is:

a. a duct from a submandibular gland

b. a duct from intercalated ducts

c. a duct from a salivery gland

d. a duct from a system duct

37 / 60

Basement membrane?

a. Consists lurati hyaline granules

b. Contains lamina lucida and lamina dura

c. Consists of desmosomes and hemidesmosomes

d. Consists of lamina densa and lamina lucida

38 / 60

ទីតាំងរបស់ Tubal tonsil គឺៈ

a. នៅខាងក្រោយនៃ opening of Eustachian tube គឺនៅក្នុង Nasopharynx

b. នៅលើ Larynx

c. នៅលើ Palate

d. នៅលើ Pharynx

39 / 60

Masticatory mucosa in the oral cavity covers the?

a. Floor of the mouth and soft palate

b. Alveolar mucosa and vestibular fornix

c. Lip and cheek

d. Gingiva and hard palate

40 / 60

Circumvallate papillae are supplied by?

a. Vagus

b. Lingual nerve

c. Glossopharyngeal nerve

d. Hypoglossal nerve

41 / 60

The lymph nodes មានតួនាទី :

a. ច្រោះ Lipids

b. ច្រោះ Proteins

c. ច្រោះ Toxic products

d. ច្រោះ Glucose

42 / 60

The sour taste come from:

a. Sodium chloride

b. Amino acids

c. All the answers in this question are incorrect

d. Citric acids

43 / 60

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

a. Behind the nose and roof of the mouth

b. Under the tongue

c. All the answers in this question are incorrect

d. In the ears

44 / 60

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

a. A hard shell

b. All the answers in this question are correct

c. Tiny hairs

d. A sticky top

45 / 60

Granular layer មាននៅក្នុងៈ

a. Keratinized epithelium

b. Non-keratinized epithelium

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

d. Para-keratinized epithelium

46 / 60

What is a secretory cell in oral cavity:

a. Cell producing saliva

b. Cell producing histamine

c. Cell producing gastric acid

d. Cell producing hormone

47 / 60

The structure of the oral mucosa is:

a. Epithelium and basement membrane.

b. Mucosa & submucosa.

c. Epithelium, lamina propria and muscular layer.

d. Epithelium, lamina propria and basement membrane.

48 / 60

Bartholin’s duct drains the:

a. Sublingual gland

b. Lacrimal gland

c. Parotid

d. Submandibular gland

49 / 60

In the tongue bitter taste is more perceived at?

a. Tip

b. Front

c. Back

d. Sides

50 / 60

The spirilla bacteria Trepnema pallida causes:

a. Tuberculosis

b. Syphilis

c. Abscesses

d. Pneumonia

51 / 60

Diskeratosis គឺជាៈ

a. Abnormality of orientation and development of epithelial cells.

b. Abnormality of migration and cells mitosis.

c. Abnormality of orientation and cells mitosis.

d. Abnormality of structure and development of epithelial cells.

52 / 60

Intermediate layer មាននៅក្នុងៈ

a. Orthokeratinized epithelium

b. Keratinized epithelium

c. Parakeratinized epithelium

d. Nonkeratinized epithelium

53 / 60

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

a. Diplococci

b. Bacilli

c. Staphylococci

d. Streptococci

54 / 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. Lip and posterior third of the hard palate

d. Retromolar area and hard palate

55 / 60

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

a. All the answers in this question are incorrect

b. Sublingual gland

c. Submandibular gland

d. Parotid gland

56 / 60

Supporting cells of taste buds are called as?

a. Von Ebner cells

b. Sustenticular cells

c. Taste cells

d. Acini

57 / 60

The connective tissue of the gingiva is known as the?

a. Lamina propria

b. Lamina dura

c. Fibroblasts

d. Dental cuticle

58 / 60

Buccal mucosa is?

a. Keratinized

b. Non- keratinized

c. Ortho keratinized

d. Para keratinized

59 / 60

Taste buds មិនមាននៅក្នុង៖

a. Filiform papillae

b. Fungiform papillae

c. Foliate papillae

d. Circumvallate papillae

60 / 60

Vesicle គឺជា

a. ពងទឹកលាយឈាម

b. ពងខ្ទុះ

c. ពងទឹក

d. ពងទឹកលាយខ្ទុះ

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និស្សិតអាចប្រាប់មកកាន់ពួកយើងបានដើម្បីកែកំហុស ឬអំពីបញ្ហាដោយអចេតនាណាមួយដែលកើតមានកំឡុងពេលធ្វើតេស្ត