QUIZ 8

Question 1

The tongue is NOT part of the

Answer 1

alimentary canal.

Question 2

The spleen is NOT an accessory organ of

Answer 2

digestion.

Question 3

Saliva is largely secreted by the

Answer 3

parotid, sublingual and submandibular glands; rich in amylase comesprimarily from the parotid and submandibular glands; helps moisten food so that it can be swallowed; and contains primarily water.

Question 4

The stomach does NOT function as the

Answer 4

primary absorption site for most nutrients.

Question 5

Gastric juice does not digest the stomach because the stomach is protected by an

Answer 5

alkaline mucous membrane

Question 6

The layers of the GI tract in correct order from superficial to deep are the

Answer 6

serosa, the
muscularis, the
submucusosa and the
mucosa.

Question 7

The Salivary enzyme amylase functions to digest

Answer 7

carbohydrates.

Question 8

Protein digestion begins in the

Answer 8

stomach.

Question 9

The folds of the gastric mucosa are called

Answer 9

Rugae.

Question 10

Intrinsic factor secreted by the parietal cells of the stomach is required for absorption of

Answer 10

vitamin B12.

Question 11

The ______ opens to permit passage of chyme into the duodenum; prevents backflow of food into the stomach; and Is a thicken ring of muscle through which the stomach communicates with the duodenum

Answer 11

The pyloric (sphincter) valve

Question 12

The stomach absorbs

Answer 12

alcohol, aspirin, and water.

Question 13

Gastrin functions to release more gastric juice, increase

Answer 13

gastric motility, and relax pyloric sphincter.

Question 14

No digestion takes place in the

Answer 14

esophagus.

Question 15

The digestive system includes a tube that extends from the mouth to the anus.

Answer 15

The digestive system includes organs that food does not actually enter. The digestive system shares some structures with the respiratory system.

Question 16

Pancreatic juice includes

Answer 16

amylase, bicarbonate, trypsinogen, and ribonuclease.

Question 17

The gallbladder

Answer 17

concentrates and stores bile.

Question 18

The small intestine is the major site of digestion and absorption;.

Answer 18

consists of the duodenum, jejunum and ileum; has villi and microvilli that increase its surface area for absorption; and contains circular folds that increase surface area and absorption

Question 19

The exit of the stomach is

Answer 19

the pylorus.

Question 20

Adrenaline will

Answer 20

relax the muscles of the stomach and intestines and decrease the flow of blood to these organs.

Question 21

The large intestine absorbs mostly

Answer 21

water.

Question 22

Digested fatty acids enter the

Answer 22

blood stream from the Lymphatic system.

Question 23

During digestion, proteins are

Answer 23

broken down into amino acids.

Question 24

This intestinal enzyme Lipase is needed

Answer 24

to digest fat.

Question 25

The external anal sphincter is

Answer 25

voluntarily controlled.

Question 26

The pancreas functions as both an

Answer 26

exocrine & endocrine gland.

Question 27

The common bile duct opens into the

Answer 27

Duodenum

Question 28

The liver processes

Answer 28

waste products, pathogens, and circulating hormones.

Question 29

The common bile duct is formed by

Answer 29

the union of the common hepatic and cystic ducts.

Question 30

The appendix is attached to

Answer 30

the cecum.