ch. 3 quiz

Question 1

a significant structural difference between the small and large intestine is the

Answer 1

presence of villi in the small intestine

Question 2

peristalsis refers to

Answer 2

rhythmic squeezing and pushing of both circular and longitudinal muscles

Question 3

_____ sophisticated structures that perform unique body functions, are further grouped into _____ which perform integrated functions

Answer 3

organs
systems

Question 4

the ____ stores bile while the ____ secretes digestive enzymes and the ____ is the largest digestive organ

Answer 4

gallbladder
pancreas
liver

Question 5

cells are

Answer 5

the smallest unit of life

Question 6

mitochondria are located in the _____ and serve as ____

Answer 6

cytoplasm
the energy producers of the cell

Question 7

the most common type of ulcer is located in the

Answer 7

stomach or upper duodenum

Question 8

heartburn is

Answer 8

a painful burning sensation felt behind the sternum due to acid reflux into the esophagus

Question 9

the _____ is the region of tissue that triggers hunger in response to signals from nerve cells and messages carried by hormones

Answer 9

hypothalamus

Question 10

vitamins and minerals are digested in the same manner as macronutrients

Answer 10

false

Question 11

what is considered to play a key role in the development of the majority of peptic ulcers

Answer 11

H. pylori

Question 12

the cephalic phase of digestion refers to hunger and appetite working together to prepare the GI tract to digest food

Answer 12

true

Question 13

the cell ____ encloses the cell’s contents

Answer 13

membrane

Question 14

the damage due to celiac disease is caused by the _____ but the disease is also classified as a ______ disorder

Answer 14

immune system
genetic

Question 15

the three major processes of the gastrointestinal system are

Answer 15

digestions
absorption
elimination

Question 16

what structures in the oral cavity contribute to the process of digestion

Answer 16

teeth
tongue
salivary glands

Question 17

what does the majority of absorption and digestion occur

Answer 17

small intestine

Question 18

what help synthesize certain vitamins in the intestine and are thought to help promote intestinal motility

Answer 18

GI flora

Question 19

the primary organ that regulates our hunger is

Answer 19

the brain

Question 20

what makes the stomach unique

Answer 20

its tolerance of a highly acidic environment

Question 21

which of the following play a role in regulating hunger and satiety

Answer 21

food type
food amount
nerves
hormones

Question 22

a food intolerance is due to a hypersensitivity reaction of the immune system response to a food

Answer 22

false

Question 23

What is the difference between hunger and appetite?

Answer 23

Hunger is a physiological need to eat; appetite is a psychological desire to consume specific foods

Question 24

Along the GI tract is a series of glands that secrete juice, mucus, and water. The actions of these glands are controlled by

Answer 24

the nervous system