L53. Oral Environment 2 Flashcards
1
Q
What activates amylase?
A
Cl-
2
Q
Which substance does amylase require?
A
Ca2+
3
Q
What does amylase do?
A
Hydrolyses 1-4 alpha starch glycosidic links.
4
Q
What is the role of lysozyme and where is it found?
A
Non specific defence
Present in many secretions (saliva, tears)
5
Q
What is the role of cystatins?
A
Antimicrobial
6
Q
What is the role of histatins?
A
Histidine rich
Inhibits candida albicans and s. mutans
7
Q
What is the role of immunoglobulins?
A
Secretory IgA
8
Q
What is the role of lactoferrin?
A
iron-binding
antibacterial
9
Q
What does chewing on one side stimulate?
A
Saliva secretion on that side.
10
Q
Which nerves are responsible for :
increased secretion
increased blood flow?
A
Parasympathetic
11
Q
Which nerves are responsible for :
increased secretion
decreased blood flow?
A
Sympathetic
