Chapter 23

Question 1

Four basic layers of all digestive organs

Answer 1

mucosa, submucosa, muscular externa, serosa

Question 2

Types of secretory gland cells

Answer 2

mucous neck cells, parietal cells, chief cells, enteroendocrine cells

Question 3

Gastric secretions

Answer 3

cephalic (reflex) phase, gastric phase, intestinal phase

Question 4

Gastric phase

Answer 4

active enteroendocrine G cells to secrete gastrin

Question 5

Stimulation of gastric phase

Answer 5

• binding to receptors on parietal cells

- stimulating enteroendocrine cells to release histamine

Question 6

Inhibition of intestinal phase

Answer 6

four main factors in dudenum cause inhibition of gastric secretions

Question 7

Bile salts

Answer 7

cholesterol derivates that function in fat emulsification and absorption

Question 8

Bilirubin

Answer 8

pigment formed from heme

Question 9

Digestive enzymes

Answer 9

proteases, amylase, lipases, nucleases

Question 10

Bile duct and pancreatic duct fuse together in bulblike structure called

Answer 10

hepatopancreatic ampulla

Question 11

Hepatopancreatic sphincter

Answer 11

controls entry of bile and pancreatic juice into duodenum