GI System

Question 1

Order the structures after digestion levels the small intestine

Answer 1

Cecum
Asending colon
Transverse colon
Descending colon
Sigmoid colon
Rectum

Question 2

___ Secreted by the pancreas digesting carbohydrates in the ___

Answer 2

Amylase, Small intestine

Question 3

Pepsin secreted in the ___
Chemically breaks down ____ in the stomach

Answer 3

Stomach, Proteins

Question 4

____ secreted by the ____ chemically breakdown lipids in the small intestine

Answer 4

Lipases, Pancreas

Question 5

Microvili are

Answer 5

small finger like projections of absorptive cells

Question 6

What is mechanical digestion?

Answer 6

Mastication - chewing

Question 7

Rugae

Answer 7

Folds of mucosa and submucosa in the stomach

Question 8

Which of the following occurs in the stomach?

Answer 8

Chemical digestion of proteins

Question 9

____ breaks complex carbs down into ___

Answer 9

Amylase, Polysaccharides

Question 10

Which cells of the gastric glands secrete hydrochloric acid (HCl)?

Answer 10

Parietal cells

Question 11

Propulsion

Answer 11

Process from muscles in the GI tract

Question 12

Most absorption takes place within the

Answer 12

Small intestine

Question 13

Absorption of 10% of water and electrolytes

Answer 13

Large intestine

Question 14

Mastication

Answer 14

Mouth

Question 15

chemical digestion of all three macronutrients

Answer 15

Small intestine

Question 16

Emulsification of fats

Answer 16

Small intestine

Question 17

Grinding and retropulsion

Answer 17

Stomach

Question 18

Large, slow peristalsis a few times a day

Answer 18

Large intestine

Question 19

Pancreases releases enzymes that will chemically digest

Answer 19

Lipids,
Carbohydrates

Question 20

Propulsion of material through the GI tract is accomplished by:

Answer 20

Peristalsis

Question 21

Chief cells

Answer 21

pepsinogen

Question 22

Parietal cells

Answer 22

HCL (Hydrochloride acid)

Question 23

Mucous neck cells

Answer 23

Mucus

Question 24

Enteroendocrine cells

Answer 24

Hormones

Question 25

The purpose of the villi in the small intestine is to

Answer 25

increase the surface area available for absorption

Question 26

GI accessory glands

Answer 26

Liver Pancreas Salivary glands

Question 27

Order the four main layers of the GI tract wall from the lumen outwards (deep to superficial).

Answer 27

Mucosa Submucosa Muscularis externa Serosa

Question 28

Deglutition in the esophagus is voluntary

Answer 28

false

Question 29

Breaks down triglycerides into monoglycerides and fatty acids

Answer 29

Lipase

Question 30

Packaged monoglycerides and fatty acids for absorption

Answer 30

Micelles and chylomicrons

Question 31

Where lipids are absorbed into (instead of the blood)

Answer 31

Lacteals

Question 32

Emulsifies fat droplets

Answer 32

Bile salts

Question 33

Purpose of the vili in the small intestine

Answer 33

Increase the surface area available for absorption

Question 34

Which of the following are functions of the salivary glands and saliva

Answer 34

Dissolve food chemicals for gustatory chemoreception Immune protection Chemical digestion of carbohydrates

Question 35

Proteins are chemically broken down by ____ in the stomach

Answer 35

Pepsin

Question 36

____ released from ____ into duodenum

Answer 36

Proteases, pancreas

Question 37

Secretions from the liver/gallbladder and pancreas are released into the:

Answer 37

Duodenum

Question 38

BIle is produced by the

Answer 38

Liver

Question 39

Which of the following are functions of the liver?

Answer 39

Producing bile Detoxifying certain poisons

Question 40

The pancreas releases enzymes which chemically digest

Answer 40

Carbohydrates Proteins Lipids

Question 41

Chemical digestion of carbs

Answer 41

Mouth and Small intestine

Question 42

Which of the six digestive processes occur due to the action of the muscles lining the GI tract?

Answer 42

Mechanical digestion Propulsion Defecation