Alimenation Flashcards
1
Q
What are teeth made of in the enamal?
A
Hydroxyapatite
2
Q
What are teeth made of in the dentine?
A
Collagen
3
Q
What are teeth eroded by?
A
Acid
4
Q
How many pairs of salivary glands are there?
A
3
5
Q
What cranial nerves control the salivary glands?
A
7 and 9
6
Q
How much saliva do the three pairs of salivary glands produce a day
A
0.5L
7
Q
Saliva is hypotonic; what does this mean?
A
Has a lower osmotic pressure
8
Q
What 6 things are contained in saliva?
A
- 100mM NaCl in mucous
- Salivary amylase
- HCO3-
- SCN-
- I-
- Lysosome