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Practice MCQ > Salivary gland > Flashcards

Salivary gland Flashcards

1
Q

Mucous cells of salivary glands have:
a- Rounded nuclei.
b- Flattened nuclei.
c- Form the cap of the demilunes.
d- Have zymogen granules.

A

B

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2
Q

Which of the following is not function of the striated duct?
a- Iodine secretion.
b- Zymogen secretion.
c- Sodium & chloride transport.
d- Potassium & calcium transport.

A

B

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3
Q

Which of the following is not characteristic of serous cells of a salivary gland?
a- The cells are pyramidal in shape.
b- Its secretory granules are called zymogen granules.
c- They are capped by mucous cells in a mixed salivary acinus.
d- There is junctional complexes between the secretory cells.

A

C

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4
Q

Which of the following adult gland is incorrectly paired with its secretion?
a- Parotid - pure serous.
b- Palatal salivary glands - pure mucous.
c- Submandibular - mixed salivary gland.
d- Sublingual - pure serous.

A

D

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5
Q

The secretory canaliculi in salivary gland is found in:
a- mucous acini.
b- Striated ducts.
c- Serous acini.
d- Main duct.

A

C

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6
Q

The excretory ducts of the major salivary glands are lined with:
a- Simple cubiodal epithelium with goblet cells.
b- Simple columnar without goblet cells.
c- Stratified squamous epithelium with goblet cells.
d- Pseudostratified columnar epithelium with goblet cells.

A

D

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7
Q

The cytoplasmic basophilia observed in acinar cells of the adult parotid gland
is due to:
a- Mucigen granules.
b- Ribosomes.
c- Glycoproteins.
d-Lysosomes.

A

B

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8
Q

The basophilia observed in acinar cells of the parotid gland is due to:
a- Mucigen granules.
b- Lysosomes.
c- Glycoproteins.
d- Ribosomes.

A

D

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8
Q

Pure mucous salivary gland is:
a- Parotid gland.
b- Major sublingual glands.
c- Glossipalatine gland
d- Submandibular gland.

A

C

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9
Q

In the demilune of the mixed salivary acinus, the mucous secretory cells:
a- Have rounded nuclei.
b- Form demilune cappings.
c- Have zymogen granules.
d- Line the luminal surface of the acinus.

A

D

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10
Q

The concentration of sodium and chloride in saliva is controlled by:
a- Highly differentiated serous cells.
b- Well developed mucous cells.
c- Striated ducts.
d- Intercalated ducts.

A

C

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11
Q

The role of the myoepithelial cells in the salivary glands is:
a- Defensive mechanism.
b- Contraction of the acinus.
c- Prevention of collapse of the acini.
d- Prevention of extravasation of saliva into the glandular stroma

A

B

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12
Q

Which of following is most likely to be a product of a salivary gland serous
cell?
a- Collagenase enzymes.
b- Mucous secretion.
c- Synovial fluid.
d- Enzyme which digests starch and other polysaccharides

A

D

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13
Q

Which of the following glands has a purely serous secretion?
a- Labial.
b- Anterior lingual.
c- Submandibular.
d- Von Ebner’s.

A

D

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14
Q

The secretions of salivary glands are:
a- Exocrine and holocrine.
b- Exocrine and merocrine.
c- Exocrine and apocrine.
d- Endocrine and merocrine.

A

B

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15
Q

Which minor salivary glands are purely serous:
a- Lingual glands of Von Ebner.
b- Lingual glands of Blandin Nuhn.
c- Palatine glands.
d- Labial and buccal glands.

A

A

16
Q

A serous acinar cell has all the following characteristic except:
a- Numerous secretory granules in apical cytoplasm.
b- Cytoplasm is abundant and basophilic.
c- Basal cell membrane has many infolding between which rows of
mitochondria are lodged.
d- Extensive rough endoplasmic reticulum is present.

A

C

17
Q

The groups of entirely serous adult salivary glands are:
a- Von Ebner’s and palatal.
b- Parotid and Von Ebner’s.
c- Parotid and submandibular.
d- Sublingual and submandibular.

A

B

18
Q

The ducts of the salivary glands that are lined by a single layer of
tall columnar cells with radially arranged mitochondria are known as:
a- Lobar ducts.
b- Striated ducts.
c- Intercalated ducts.
d- Interlobar ducts.

A

B

19
Q

Large cells with a small pyknotic nucleus and abundant cytoplasm, mainly
in the parotid and submaxillary glands are the:
a- Myoepithelial cells.
b- Oncocytes.
c- Serous cells.
d- Cells of the intercalated ducts.

A

B

20
Q

Thin branching tubes of varying lengths that connect the terminal portions
with the striated ducts of salivary glands are:
a- Interlobular ducts.
b- Intercalated ducts.
c- Intralobular ducts.
d- lobular ducts.

A

B

21
Q

Which of the following is not true of parotid glands:
a- Stenson’s duct opens in the cheek opposite maxillary second molar.
b- Predominantly serous gland.
c- Long, branching intercalated ducts are present.
d- Serous demilunes cap mucous secretory units.

A

D

22
Q

Which of the following is false about sublingual glands:
a- The excretory duct opens at the sublingual caruncle.
b- It is a predominantly mucous gland.
c- They have poorly developed striated ducts.
d- They have a long branching intercalated duct structure.

A

D

Practice MCQ (10 decks)

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