Alimenation

Question 1

What are teeth made of in the enamal?

Answer 1

Hydroxyapatite

Question 2

What are teeth made of in the dentine?

Answer 2

Collagen

Question 3

What are teeth eroded by?

Answer 3

Acid

Question 4

How many pairs of salivary glands are there?

Answer 4

3

Question 5

What cranial nerves control the salivary glands?

Answer 5

7 and 9

Question 6

How much saliva do the three pairs of salivary glands produce a day

Answer 6

0.5L

Question 7

Saliva is hypotonic; what does this mean?

Answer 7

Has a lower osmotic pressure

Question 8

What 6 things are contained in saliva?

Answer 8

1. 100mM NaCl in mucous
2. Salivary amylase
3. HCO3-
4. SCN-
5. I-
6. Lysosome