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oral embryology > quiz on salivary glands and tonsils > Flashcards

quiz on salivary glands and tonsils Flashcards

1
Q

origin of salivary glands

A

ectodermal (epithelium)

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2
Q

origin of the outer capsule and septa

A

CT from mesenchyme

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3
Q

salivary glands consist of many____ where saliva is excreted and a system of _____, which collect and transport the saliva

A

acini

ducts

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4
Q

cluster of pyramidal shaped cells that secrete into terminal collecting ducts

A

alveolus or acinus

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5
Q

secretory end piece or intercalated duct

A

collected duct

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6
Q

1st duct the acini encounter; on outer/terminal part of the gland

A

intercalated duct

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7
Q

secrete serous saliva
nucleus is oval to round
nuclei is in the basal part of cell
protein secreting cell; filled with albumin(purple stain)

A

serous acini

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8
Q

clear; not as purple
flattened nucleus in basal part of cell
contains large drops of mucin with CHOs

A

mucous

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9
Q

secrete serous and mucous; in submandibular salivary gland
serous demilunes
mucous cell covered with a layer of serous cells

A

combination

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10
Q

acini are arranged in lobules invested in____O

A

ct

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11
Q

groups of lobules form lobes surrounded by a CT ____ containing ducts

A

septum

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12
Q

divide inner part of gland into larger lobes and smaller lobules

A

septum

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13
Q

the connective tissue covering the entire gland is the

A

capsule

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14
Q

located on surface of acini to get saliva out of the lumen

A

myoepithelial cells

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15
Q 
function as muscle cells
contract the acinus to secrete saliva
A

myoepithelial cells

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16
Q

has cytoplasmic processes(octopus on a rock) 4-8 radiating outward and has 1 cell body

A

myoepithelial cells

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17
Q

largest
located on sides of face in front of ears(lots of adipose)
produces nearly pure serous secretion(purple)
largest, but contributes only 25% of total saliva
duct often adjacent to the maxillary 2nd molar, parotid papilla
stensons duct

A

parotid

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18
Q

2nd largest
inside angle of mandible
mixed secretions (serous demilumes)
60-65% of total saliva volume(puts out most saliva)
duct opening is located in floor of mouth at sublingual caruncle
whartons duct or submandibular duct

A

submandibular

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19
Q

either side of midline beneath the mucosa of anterior floor of mouth
pure mucous secretion
smallest of the major glands
unencapsulated
5-10% of total saliva volume
duct also opens in floor of mouth at sublingual caruncle; other ducts scattered in floor of mouth along sublingual fold
bartholins duct

A

sublingual gland

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20
Q

empty products directly into mouth by means of short ducts; named for their location; contributes about 5-`0% of volume of saliva

A

minor salivary glands

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21
Q

cheeks, mixed

A

buccal glands

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22
Q

lips, mixed

A

labial glands

23
Q

posterior hard palate and soft palate, pure mucous

A

palatine glands

24
Q

tonsillar folds, pure mucous

A

glossopalatine

25
Q

tongue

A

lingual glands

26
Q

tip of tongue is

A

mixed secretions

27
Q

area of circumvallate papilla

A

serous(von ebners)

28
Q

posterior under lingual tonsillar tissue

A

mucous

29
Q

duct associated with a cluster of acinus(like stalk with grapes)
tube with single layer of cuboidal cells, terminal portion

A

intercalated duct

30
Q

connected to intercalated ducts in the lobules of the gland

consists of a tube with a single layer of columnar epithelial cells with basal striations

A

striated duct

31
Q

the intercalated ducts empty into

A

striated duct

32
Q

in between lobes and lobules
final portion is the excretory duct. saliva exits into the oral cavity through this duct. the excretory duct changes from stratified columnar epithelium to stratified squamous ep at the ductal opening in the oral cavity. stensons duct or whartons duct

A

interlobular excretory duct

33
Q

what ep lines the oral cavity

A

stratified squamous

34
Q

what does secretion depend on

A

gustatory(taste) and masticatory stimulation

35
Q

the major salivary protein is

A

amylase- breakdown starches

36
Q

amylase is mainly present in which gland

A

parotid(starts breakdown in mouth)

37
Q

saliva also contains

A

proteins, lysozyme and albumin

38
Q

the viscous nature of saliva is due to

A

salivary mucin, which is a mixture of glycoproteins

39
Q

how much saliva secreted each day

A

3 pints

40
Q

is saliva secretion low or high rate during sleep?

A

low

41
Q

can result in increase trauma to nonprotected oral mucosa, increase caries, problems in speech and mastication and bad breath

A

xerostomia

42
Q

lymphnode like organs; positioned at entrance of alimentary canal; germinal centers produce lymphocytes, which protect against microbes, foreign cells, and cancer cells

A

tonsils

43
Q

kills antigens directly

A

t lymphocytes

44
Q

differentiate into plasma cells which produce antibodies, namely secretory IgA

A

b lymphocytes

45
Q

ring of tonsillar tissue in the oropharynx

A

waldeyers ring

46
Q

located on the lateral wall of oropharynx
bilateral
contains crypts

A

palatine tonsils

47
Q

located in the midline of posterior pharyngeal wall
single
contains folds, not crypts

A

pharyngeal tonsils(adenoids)

48
Q

located in the midline of posterior 1/3 of tongue
bilateral
contains crypts

A

lingual tonsils

49
Q

involving minor salivary gland
obstruction of duct bc person keeps biting lip and fills up with saliva
repetitive(surgery to remove minor salivary gland to fix it)

A

mucocele

50
Q

floor of mouth(on 1 side of tongue)
obstruction of submandibular salivary gland
cant be removed, must be drained

A

ranula

51
Q

hard palate is whitened by hyperkeratinization due to heat from smoking or hot liquid
inflammation of duct openings in minor salivary glands of the palatal area which causes their dilation (little red dots)
typically pipe/cigar smokers

A

nicotinic stomatitis

52
Q

caused by dry mouth

A

fissured tongue

53
Q

blockage of salivary gland ducts can result from either ______ formation or trauma to duct opening

A

salivary stone(sialolith)

oral embryology (10 decks)

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