Digestive System - Stomach

Question 1

Mucosa Surface

Answer 1

Secretes cells, resulting in a protective barrier that prevents digestive of the stomach wall

Question 2

Parietal cells

Answer 2

Secretes intrinsic factor: Needed for absorption of B12

Hydrochloric acid: kills microbes in food, denatures proteins AND converts pepsinogen into pepsin

Question 3

Hydrochloric acid

Answer 3

kills microbes in food, denatures proteins AND converts pepsinogen into pepsin

Question 4

Chief cells

Answer 4

Secretes pepsinogen and gastric lipase

Question 5

Pepsinogen

Answer 5

Active form Pepsin breaks down proteins into peptides

Question 6

Gastric lipase

Answer 6

Splits triglycerides into fatty acids and monoglycerides

Question 7

G cells

Answer 7

Secrete gastrin

Question 8

Gastrin

Answer 8

Stimulates parietal cells to secrete HCL and chief cells to secrete pepsinogen, contracts lower esophageal sphincter, relaxes pyloric sphincter

Question 9

The stomach connects what to areas?

Answer 9

The esophagus and the duodenum

Question 10

The act of moving gastric contents from the body of the stomach to the antrum

Answer 10

Propulsion

Question 11

Pepsin

Answer 11

Breaks down protein into smaller peptide fragments