salivary physiology Flashcards
1
Q
bicarb
A
acts as a buffer, secreted along system, neutralizes gastric acid, increase solubility of macromolecules.
2
Q
ph maintenance
A
g cells> h+, pancreatic cells> HC03
3
Q
salivary glands
A
parotid, submandibular, sublingual
4
Q
parotid glad
A
major gland, most saliva, main stimulated. Stenson duct>mouth. serous only
5
Q
submandibular gland
A
whartons gland below duct, main unstimulated mixed, serous
6
Q
sublingual gland
A
mixed, mucus
7
Q
saliva contents
A
acinar cells: alpha amylase, lipase, mucin, extracellular fluid ductal cells: modify ions. HYPOTONIC
8
Q
things that increase flow
A
food, chewing, nausea
9
Q
things that decrease
A
dehydrated, sleep, gear, antichol drugs
10
Q
control of saliva flow
A
not GI hormones: para increases secretion, sympathy increase fluid, io s, proteins
