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Module 4 - Saliva > Biology > Flashcards

Biology Flashcards

1
Q

what type saliva does the parotid gland secrete?

A

serous

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2
Q

what type of saliva does the sublingual gland secrete?

A

mucous

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3
Q

what type of saliva does the submandibular gland secrete?

A

mixed

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4
Q

what type of saliva does the palatine gland secrete?

A

mucous

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5
Q

what are the 4 components of saliva glands?

A

acinus
intercalated duct
striated duct
secretory duct

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6
Q

what is the function of the acinus?

A

cells produce primary secretion

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7
Q

what are the 2 types of acinar cells?

A

serous
mucous

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8
Q

describe acinar cells?

A

pyramidal cells and central lumen
polarised cells with peripheral nucleus

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9
Q

describe serous acinar cells

A

prominent nuclei in basal region
basophillic RER (attracts purple stain)
granular appearance

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10
Q

describe mucous acinar cells

A

pale cytoplasm
flattened basal nucleus
many large mucin granules

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11
Q

where would you see serous demilunes?

A

around mucous acini

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12
Q

where are acini enclosed?

A

with myoepithelial cells

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13
Q

what is the role of myoepithelial cells that enclose the acini?

A

“squeeze” the acinus, assisting secretion
regulate duct diameter

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14
Q

describe intercalated ducts?

A

small, low cuboidal cells
large central nucelus

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15
Q

describe striated ducts

A

central basal nucleus

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16
Q

why is the nucelus of striated duct cells central?

A

folded basal membrane

17
Q

where would you NOT find striated ducts?

A

sublingual glands

18
Q

what is the role of striated ducts?

A

active modification of primary saliva
exchange

19
Q

describe secertory ducts

A

large lumen
pseudostratified
stratified near termination

20
Q

what do the stratified cells of secretory ducts merge with near termination?

A

stratified squamous oral epithelium

Module 4 - Saliva (7 decks)

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