The Digestive System

Question 1

Digestive tract

Answer 1

Oral cavity > pharynx > esophagus > stomach > small intestine > large intestine > rectum

Question 2

Salivary amylase and lipase

Answer 2

start the chemical digestion of food

Question 3

mucous cells

Answer 3

produce bicarbonate rich mucus to protect the stomach

Question 4

Chief cells

Answer 4

secrete pepsinogen

Question 5

parietal cells

Answer 5

secrete HCl and intrinsic factor (for B12 absorption)

Question 6

G cells

Answer 6

secrete gastrin, which increases HCl and gastric motility

Question 7

Carbohydrates digested in these sites:

Answer 7

Mouth

Duodenum

Question 8

Proteins digested in these sites:

Answer 8

Stomach

Duodenum

Question 9

Lipids

Answer 9

Duodenum

Question 10

Secretin

Answer 10

Stim. release of pancreatic juices into the digestive tract andslows motility

Question 11

CCK

Answer 11

stim. bile release from the gallbladder, release of pancreatic juices, and satiety

Question 12

What are the jejunum and ileum of the small intestine involved in?

Answer 12

Absorption