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Question
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Answer
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1
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The salivary glands are a type of
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Exocrine glands
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2
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The major salivary glands are
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Sublingual glands; Submandibular glands; Parotid glands
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3
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The parenchymal elements of salivary glands are derived
from: |
Oral epithelium
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4
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The terminal secretory units of salivary glands are
composed of: |
Serous cells; Mucous cells; Myoepithelial cells
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5
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The secretions of the salivary secretory tubules are
collected in the: |
Intercalated ducts
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6
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The typical serous cell of a salivary gland has a/an:
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Pyramidal shape. With a broad base on a thin lamina and
apex bordering the lumen. |
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7
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The shape and location of nucleus in serous salivary acini
is: |
Spherical and basal region
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8
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The proteins destined for secretion are synthesized by
salivary serous cell as: |
Pre-proteins
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9
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The preprotein contains a NH2 terminal sequence referred
as: |
Signal sequence
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10
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The signal sequence in a preprotein of salivary serous
acini is: |
In NH2 terminal; Recognized by rough endoplasmic reticulum
and attached to ribosomes; Transfer of polypepetide chain across rough endoplasmic reticulum |
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11
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The signal sequence in a preprotein of salivary serous
acini is removed by: |
Signal peptidase
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12
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The most common modification of salivary proteins prior to
their secretion is: |
Glycosylation
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13
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Discharge of the granule content in a serous cell occurs
by: |
Exocytosis
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14
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Free ribosomes in the cytoplasm of the serous cell are
concerned with: |
Synthesis of non secretory proteins
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15
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The source of high energy compounds required for synthetic
& transport function in a serous cell is: |
Mitochondria
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16
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The ratio of carbohydrate to protein content with respect
to salivary serous & mucous cells is greater in: |
Mucous cell
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17
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The salivary enzymatic activity is much pronounced in
saliva secreted from: |
Serous cell
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18
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The secretory product of a mucous cell serves the function
of: |
Lubrication
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19
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The shape and location of nucleus in mucous salivary acini
is: |
Oval and supra basal
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20
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Salivary myoepithelial cells are closely related to:
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Secretory & intercalated duct cells
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21
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Salivary Myoepithelial cell has a characteristic shape
which is best described as: |
Basket shape
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22
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Caveolae are the micropinocytic vesicles found on the
surface of the: |
Myoepithelial cells
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23
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Primary function of salivary myoepithelial cells is
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Contractility
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24
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The arrangement of the salivary secretory cells is best
described as a: |
Tubular unit
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25
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Demilunes are crescent shaped structures on the serous
cells of a: |
Predominantly mucous salivary gland
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26
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The intercalated ducts are lined by:
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Low cuboidal cells
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27
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The striated ducts are lined by:
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Tall columnar cells
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28
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The striated duct appears striated because of:
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Basal infoldings only; Numerous mitochondria only
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29
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The pH of secretion of an intercalated duct is:
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Isotonic to plasma
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30
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As compared to plasma the final saliva secreted in the
oral cavity is: |
Hypotonic
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31
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The intercalated & striated ducts are poorly developed
in the: |
Sublingual gland
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32
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The gland which is devoid of a capsule is:
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Minor salivary gland
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33
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The glands of Blandin & Nuhn are located:
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Near the apex of the tongue
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34
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The only minor serous salivary gland is the:
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Von Ebner glands
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35
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The primordium of the parotid and submandibular glands
appears during: |
6th week of intrauterine life
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36
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The primordium of the sublingual gland appears during:
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10th week of intrauterine life
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37
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The minor salivary glands begin their development during:
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3rd month of
intrauterine life |
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38
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The total volume of saliva secreted daily by humans is
approximately: |
750 ml. It is in the range of 640 ml to 1200 ml per day.
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39
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Major bulk of the saliva is produced by:
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Submandibular gland
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40
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The lubricant action in whole mouth saliva is due to its:
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Glycoprotein content
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41
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Taste bud growth and maturation is mediated by:
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Gustin
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42
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The antimicrobial actions in saliva is due to the
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Histatin; Lysozyme; Lactoferrin
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43
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The component in saliva that inhibits calcium phosphate
deposition remineralization of tooth is: |
Statherin
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44
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Comparatively minor salivary glands do not occur in:
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Gingiva
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45
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Excretory duct of parotid glands discharge at:
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Opposite to maxillary 2nd molar in buccal mucosa
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46
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The duct of Submandibular salivary gland is known as:
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Wharton’s duct. Duct of parotid gland is Stenson’s duct;
Sublingual gland duct is also known as the Bartholin’s duct. |
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47
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The Submandibular gland duct opens in to the oral cavity
at the: |
Carunula sublingualis
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48
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Pure mucous minor salivary glands are the:
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Glossopalatine glands and the palatine minor salivary
glands. |
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49
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The arch that is essential for the proper development of
salivary gland epithelial structures |
Ectomesenchyme of First arch
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50
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Intercalated ducts of salivary glands are lined by:
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Short cuboidal cells. Columnar cells line the striated
ducts of salivary glands. The lining of the terminal ducts, nearer to the striated ducts are tall columnar while those near to the orifice are squamous type of epithelial cells. |
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51
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Onocytes are associatd with:
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Terminal ducts of salivary glands
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52
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Major concentration of the capillaries in salivary glands
occurs in association with: |
Striated duct of salivary glands
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53
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The salivary gland that is most resistant to atrophic
changes is the: |
Sublingual salivary glands
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54
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Salivary calculi most often occur in the:
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Submandibular salivary glands. The reasons for this are
that the duct carries saliva against gravity, the saliva is very mucous and the path of the duct of this gland is very tortuous. |
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55
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Focal accumulations of the lymphocytes are normally seen
in duct walls of the: |
Minor salivary glands. They are associated with
immuno-surveillance of the glands. |
Prof. Rooban Thavarajah
Oral and Maxillofacial Pathologist
List