Salivary Glands-1

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