Oral and Gastric Physiology and Biochemistry

Question 1

salivary glands: absorption of what ions, secretion of what ions? (2 each)

Answer 1

absorption of Na+, Cl-; secretion of K+, HCO3-

Question 2

two causes of xerostomia (dry mouth) (2)

Answer 2

cystic fibrosis, Sjogren’s

Question 3

what cells secrete somatostatin?

Answer 3

D cells

Question 4

ACh from vagus nerve stimulates secretion of what?

Answer 4

HCl and histamine

Question 5

what substance increases gastric motility?

Answer 5

gastrin