Oral Fluids and their sources

Question 1

xerostomia

Answer 1

dry mouth , symptom of salivary gland disease

Question 2

minor salivary glands

Answer 2

diffuse collections of glandular tissue in lamina propria

found in buccal, labial, lingual and palatal regions

Question 3

what type of saliva do the minor salivary glands secrete

Answer 3

all mucous except lingual which is mixed

Question 4

where would caries show if they were caused due to reduced salivary flow

Answer 4

buccal and labial regions

Question 5

what type of cells secrete saliva

Answer 5

acini cells

Question 6

what shape can salivary glands be thought of as

Answer 6

a bunch of grapes

Question 7

describe the structure of salivary glands

Answer 7

acinus secrete saliva into intercalated ducts which are continuous with striated ducts
then goes onto collecting ducts and then secreted

Question 8

what ducts have the ability to modify saliva

Answer 8

striated ducts

Question 9

how is serous acini seen in histology

Answer 9

dark stained by H and E, nuclei towards outside of cell

Question 10

how is mucous acini seen in histology

Answer 10

light stained by H and E , peripheral nuclei

Question 11

gingival crevicular fluid

Answer 11

fluid from the epithelium lining the gingival crevice

Question 12

when is gingival crevicular fluid released

Answer 12

little GCF from healthy gingiva, but flow increases with inflammation such as gingivitis

Question 13

what is an average daily salivary flow

Answer 13

500-700 ml

Question 14

what gland produces the most saliva

Answer 14

submandibular

Question 15

function of fluoride in slaiva

Answer 15

forms fluorapitite

Question 16

what salivary buffer is important at rest

Answer 16

phosphate

Question 17

at what pH are proteins most effective at buffering

Answer 17

below 5

Question 18

when is bicarbonate most effective as a buffer

Answer 18

at high flow rates