15. Digestive System & Nutrition

Question 1

Name the layer of the alimentary canal that keeps its outer surface slippery and moist

Answer 1

Serosa

Question 2

What effect does secretin have on the pancreas?

Answer 2

Stimulates the pancreas to secrete fluid high in bicarbonate ion concentration

Question 3

The chemical and mechanical breakdown of foods and the absorption of the resulting nutrients by cells is called:

Answer 3

Digestion

Question 4

Name the secretion from the stomach that aids in the absorption of vitamin b12 in the small intestine:

Answer 4

Intrinsic factor

Question 5

The ________ region of the stomach acts as a temporary storage area for ingested food.

Answer 5

Fundic

Question 6

What is the distal segment of the small intestine called?

Answer 6

ileum

Question 7

List the divisions of the small intestine in the correct order beginning at the stomach and ending at the large intestine:

Answer 7

duodenum, jejunum, ileum

Question 8

Name the segment of the large intestine between the ascending and descending colon.

Answer 8

Transverse

Question 9

Dental cavities destroy these parts of a tooth

Answer 9

dentin and enamel

Question 10

What is the function of the small intestine?

Answer 10

Digestion and absorption

Question 11

What is the inner most layer of the alimentary canal called?

Answer 11

Mucosa

Question 12

What organ secretes cholecystokinin?

Answer 12

Small intestine

Question 13

The only nutrients normally absorbed by the large intestine are

Answer 13

Water and salt (electrolytes)

Question 14

Pancreatic secretions are

Answer 14

Alkaline

Question 15

Which organ makes bile?

Answer 15

Liver

Question 16

Enzymes from the pancreas that travel along the pancreatic duct always empty into the

Answer 16

duodenum

Question 17

Name the digestive enzyme secreted by the stomach which is responsible for the initial digestion of proteins

Answer 17

Pepsin

Question 18

What is the function of bile?

Answer 18

Emulsifies fats

Question 19

Name the type of cells of the stomach that secrete digestive enzymes

Answer 19

Chief

Question 20

Name the part of the alimentary canal where most of the absorption of the products of digestion occurs

Answer 20

Small intestine

Question 21

Which of the following enzymes is present in secretions from the pancreas, stomach, as well as the mouth?

Answer 21

Amylase

Question 22

What organ secretes gastrin?

Answer 22

Stomach