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L 1&2 , histological structure of lips, tongue, salivary glands, esophagus & stomach, Histology


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MCQ



1-Each lip Is made of skeletal muscles, connective tissue (C.T.) rich in elastic fibers, blood

Capillaries, and gland labial s. It has two surfaces. Which of the following is correct for outer

Surface?

A. It is covered with thick skin.

B. It is covered with mucous membrane.

C. It is covered with thin skin.

D. It Is covered with non-keratinized stratified squamous epithelium.

E. It is covered with stratified columnar epithelium.22_The main large salivary glands are: two parotids, two submandibular and two sublingual. Parotid

Gland is characterized by:

A. It is mixed mucoserous.

B. It is mostly mucous.

C. Its main duct opens onto the floor of the oral cavity.

D. The cells of Its acini have basal basophilic and apical acidophilic cytoplasm.

E. Its acini have serous Demilune.

 3-Free margin of the lip is a transitional zone between the skin surface and the mucous membrane

Of the human lips only. It is characterized by:

A. It is covered with simple squamous epithelium.

B. It is covered with partially keratinized stratified squamous epithelium.

C. It is covered with stratified columnar epithelium.

D. It has excess sweat glands.

E. It has many hair follicles.

 

4-Tongue papilla has a core of connective tissue that is covered with keratinized stratified

Squamous epithelium. Circumvallate papillae are characterized by:

A. They are small papillae.

B. They are arranged In a V-shaped row slightly posterior to the sulcus terminalis.

C. They are "mushroom" shaped.

D. They are conical In shape and very numerous.

E. They are up to 12 papillae and surrounded by a deep groove.


5-The esophagus Is a straight, long, narrow, and muscular tube. It connects the pharynx with the

Stomach. Which of the following is correct for It?

A. It is lined with keratinized stratified squamous epithelium.

B. Its striated muscle fibers In the upper third are voluntary.

C. Its musculosa contains Meissner's plexus of nerves.

D. Its submucosa contains mucous glands in human and dogs.

E. Its mucosa contains serous glands at the middle third.

.


6-HCL is produced by:

A. Parietal (oxyntic) cells.

B. Chief (zymogenic) cells.

C. Paneth cells.

D. Enteroendocrine cells.

E. Mucous neck cells.

 


7-The fundic glands are:

A. Simple alveolar glands.

B. Alveolar glands.

C. Compound alveolar glands.

D. Simple branched tubular glands.

E. Compound tubulo-alveolar glands.

 


8-Which of the following cell is correct for surface mucous cells:

A. They are present at the bottom of the gastric glands.

B. In H&E stained sections, they appear pale. liber

C. They are cuboidal cells with basal rounded nuclei.

D. In sections stained with PAS, they appear pale blue In color.

E. They secret an acidic secretion.

 


9-Each lip Is made of skeletal muscles, connective tissue (C.T.) rich In elastic fibers, blood

Capillaries, and labial glands. It has two surfaces. Whichh of the following is correct for inner

Surface?

A. It is covered with thick skin.

B. It is covered with thin skin.

C. It is covered with mucous membrane.

D. It is covered with keratinized stratified squamous epithelium.

E. It is covered with stratified columnar epithelium.

 


10-Taste buds are neuroepithelial, flask-shaped bodies, concerned with taste sensation. They are:

A. Situated In between stratified columnar epithelium.

B. Situated in between simple columnar epithelium.

C. Formed of light and dark cells only.

D. Present on fungiform papillae of the tongue.

E. Present on filiform papillae of the tongue.

 


11-The esophagus Is characterized by:

A. It is lined with non-keratinized stratified squamous epithelium.

B. It is lined with keratinized stratified squamous epithelium.

C. Its wall Is formed of mucosa, musculosa and adventitia.

D. Its musculosa Is voluntary muscles.

E. It has submucosal glands in cats.

 

12-Fundic glands of stomach consists of straight, simple, branched tubular glands which

Synthesize and secrete gastric juice. Which of the following Is correct for fundic glands?

A. They have 3 regions: an isthmus, a long neck and a short body.

B. They occupy most of lamina propria.

C. They extend to submucosa.

D. Peptic cells are present mainly in the neck of the fundic glands.

E. Enteroendocrine cells are present mainly in the Isthmus of the fundic glands.


Tongue


1- Which type of papillae on the tongue is not well developed in man?

A-Filiform papillae . 

B-Circumvallate papillae

 C-Fungiform papillae

D- Foliate papillae

E-All of the above

 


 2- Which type of papillae on the tongue is the smallest? 

a-Filiform papillae 

b- Circumvalate papillae

c- Fungiform papillae 

d- Foliate papillae 

e-All of the above 

 

3- type of papillae on the tongue is arranged in a "V" shape on the tongue?

a-Filiform papillae

 b-Circumvallate papillae

c- Fungiform papillae 

d- Foliate papillae 

e-All of the above


 4-Which type of papilae on the tongue does NOT contain taste buds? 

a-Filiform papilae

b-Circumvallate papillae

c-Fungiform papillae

 d- Foliate papillae 

e-All of the above 


 5-Which type of papillae on the tongue is mushroom shaped

a-Filiform papilae

 b- Circumvallate papillae

c-Fungiform papillae

 d- Foliate papillae 

e-All of the above 

6-the most numerous are

a-Filiform papillae 

b-Circumvallate papillae

c-Fungiform papillae 

d-Foliate papillae 

e-All of the above 


 7-VON Ebner glands are related to: 

a-Filiform papillae

 b-Circumvallate papillae

c-Fungiform papillae

 d-Foliate papillae 

e- All of the above 


8-Lining epithelium of tongue is which is on dorsal of tongue:


 A-Stratified squamous epithelium Non Keratinized 

B-Stratified squamous epithelium partially Keratinized 

c-Stratified squamous epithelium Keratinized 

 


 9-Four major types of lingual papilae of tongue

A-Filiform papillae 

B-Fungiform papillae

C-Circumvallate papillae

D-Foliate papillae 

E-All of THE ABOVE


 10-Which lingual papillae are NOT associated with taste buds? 

A-Filiform papillae 

B-Fungiform papillae

C-Circumvalate papillae 

D-Foliate papilae 

E-ALL THE ABOVE

 

  11-Conical projections of keratinized stratified squamous epithelium and underlying connective tissue


 A-Filiform papillae

b-Fungiform papillae 

c-Circumvallate papillae

 D-Foliate papilae


 

12-Lingual salivary (Ebner's) glands 


a-PRODUCE MUCOUS SECRETION 

b-PRODUCE SEROUS SECRETIONC

c-PRODUCE.MUCOSEROUS SECRETIONC 



 13-2 cell types within taste buds:

a-CHIEF CELL

b-SUPPORTING CELL

c-SENSORY CELL

                                                

d-B&C

14-Lingual papilae cover the surface of tongue

a-Ventral 

b-Dorsal


Lip


1-The inner side of lip is lined by

A-Non-keratinized.stratified squamous epithelium

B-Keratinized stratified squamous epithelium 

C-Simple columnar epithelium

D-Simple squamous epithelium 

E-Stralified.columnar.squamous epithelium 


2-Inner surface of lip contain

 A-sweet gland

 B-Sebaceous

 C-Hair follicle 

D- All the above 

E-Labial gland

  3-Outer side of lip is lined by

A-Non-keratinized.stratified squamous epithelium

B-Keratinized stralified squamous epilhelium 

C-Simple columnar epithelium 

D-Simple squamous epithelium 

E-Stratified columnar squamous epithelium


 4-Outer surface of lip contain

 A-sweet gland

 B-Sebaceous glands

 C-Hair follicle 

D-All the above

__________

5-Free margin of lip:No sweat glands or hair follicles are present 

A-TRUE

 B-FALSE

 

 6-Free margin of the lip 

A-Keratinized 

B-Non Keratinized

C-Partially Keratinized 

 

 7-covered mucous membrane which is made of: Non-keratinized stratified squamous epithelium which is rich in nerve endings and its cells are rich glycogen;

 

A-Outer surface

 B-Inner surface

C-Free margin


salivary glands

1-All the following about the parotid gland are true EXCEPT:

a-It has well-developed capsule b-It has well developed duct system

b-Predominantly composed of serous acini

d-Its secretion contain lysozymes produces about 35%6 of all salivary secretions

 2- Parotid gland is considered as pure Salivary gland: 

a-Scrous 

b-Muccous 

c-Mucoserious 

3-The biggest duct of salivary glands

A-Interlobar ducts                                                                                   B-Intercalated ducts                                                       c-Interlobular ducts                                                       D-Intralobar ducts                                                      E-lntralobular ducts                                                                             

 4-types of secretion

A-SEROUS B-MUCOOUS C-Mucoserous D-All the above

5-Sublinguul glund is 

A-Mixed gland 

B-Serus

 C-Mucous 

 D-Present in root of tongue

_____________

6-The parotid gland opens

A-On the floor of the mouth

B-At the side of the lingual frenum 

C-At the caruncula

D-On the buccal mucosa opposite the maxillary second molar 


 


7-Which of the following is purely serous in natural

A-Parotid and Von ebners gland 

B-Palatine glands only

  C-Glossopalatine glands 

D-Lingua glands 



__

8- Largest amount of saliva is produced by:

A-Submandibular glands

B-Sublingual Glands 

C-Parotid glands 

D-Von ebner Glands 


__


 9-Stroma Formed of 

a-Capsule 

b-Trabeculae

c-Reticular stroma

d-All of the Above

 

 10-Parenchym Formed of:

a-Secretory units 

b-Duct system 

c-all of the above 

 

 11-Secretory Unit (acin); 

a-Serous acini

b-Mucous acini 

c-Mucoserious

d-All of the above  

👀L2 questions 

1-Meissner's plexus of nerves in oesophagus present in 

A-Mucosa 

b-Sub mucosa

c-Musclosa 

 

2- HCl formation and secretion is the function 

A-Chief cell 

b-Parietal cell

c-Mucus neck cells 

__


3-the most numerous cells of the gastric gland

a-Chief cells

b-Mucus Neck cell

C-Parietal cell


4-A-cell function is 

A-Secret HCl B-Secret enteroglucagon C-Secret somatostatin

 True or false 
5-Hcl secreted from parietal cells( )


6-Surface mucous cell appear red in colour by he H&E stain .(  )

7-(Auerbach's) plexus is found in the mucasa of the fundus(  ) 



__

8. Secreting pepsinogen is the function of

A-Chief cells b-Parietal cells B-Surface mucous cell

 

9- Enteroendacrine stained by all except

A-H&E

B-Dichromate salts

C-Silver

D-B&c


10. All are Characteristics of pyloric glands except

A-They are widely separated from each other.

B-They are branched and coiled glands with wider lumen

C-They are taller than the fundic glands

 Answers 


1-c

2-d

3-b

4-e

5-d

6-a

7-d

8-b

9-c

10-d

11-a

12-b




Answers of Tongue questions

1-d

2-a

3-b

4-a

5-c

6-a

7-b

8-c

9-e

10-a

11-a

12-b

13-d

14-b

____________♡_____________


Answers of Lip questions

1-a

2-e

3-b

4-d

5-a

6-c

7-b

________________♡___________

Answers of slivary glands questions

1-d

2-a

3-a

4-d

5-a

6-d

7-a

8-a

9-d

10-c

11-d

12-c

13-c

14-b

15-a

16-b


_____________♡__________

Answers of L2 questions


1-b

2-b

3-a

4-b

5-✅

6-❌

7-❌

8-a

9-a

10-c



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