Salivary Phys

Question 1

pH salivary amylase works at?

Answer 1

7, so broken down by stomach acid

Question 2

pH Lingual lipase works at

Answer 2

4

Question 3

3 functions of saliva

Answer 3

Solubilizes material
Lubricant
Protection

Question 4

What is involved in salivary protection

Answer 4

Expels noxious material
Dilutes things thermally
Is alkaline to protect esophagus and mouth from acid when throwing up

Question 5

Sublingual and submandibular glands make?

Answer 5

Both water and mucus (parotid makes only mucus)

Question 6

What cells make saliva

Answer 6

Acinar

Question 7

Electrolyte concentrations in low salivary flow

Answer 7

High potassium, low sodium

Question 8

electrolyte concentraion in high salivary flow

Answer 8

Increased Na and Cl concentration

Hypotonicity decreases

Question 9

Saliva is always?

Answer 9

Hypotonic

Question 10

What will be seen in a patient who puts out too much saliva

Answer 10

Hypokalemia and metabolic acidosis (HCO3 loss)

Question 11

What is secreted into saliva? what is absorbed

Answer 11

K is secreted

Na and Cl are absorbed

Question 12

Salivary secretion controlled by?

Answer 12

Neural input (sympathetic and parasympathetic)

Question 13

What does kallikrein do?

Answer 13

Produces bradykinin to cause increase in salivary blood flow and thus secretion

Question 14

What causes salivary secretion in cephalic phase

Answer 14

Taste, smell, and pressure

Question 15

What inhibits salivary secretion

Answer 15

taste, smell, pressure

Question 16

Parasympathetic aspect of salivary secretion controlled by?

Answer 16

CN IX and X: acivates Ach and IP3

Question 17

Sympathetic aspect of salivary secretion controlled by?

Answer 17

T1-T3: increased cAMP