test 3 part 3

Question 1

mechanical digestion occurs where?

Answer 1

mostly in the mouth, w teeth

Question 2

chemical digestion occurs where?

Answer 2

enzymes break down food

Question 3

describe the tongue

Answer 3

muscle; taste buds, savory glands, produce saliva, salivary amylase (chemical digestion; spit)

Question 4

children have how many teeth?

Answer 4

20

Question 5

adults have how many teeth?

Answer 5

32 permanent teeth

Question 6

what are dental caries?

Answer 6

cavities (bacteria)

Question 7

what is gingivitis?

Answer 7

gum disease; hold teeth together, flossing

Question 8

what is bolus?

Answer 8

mixture of chewed food & saliva

Question 9

esophagus is what?

Answer 9

muscular tubew

Question 10

what is peristalsis?

Answer 10

pushes food the way it should go

Question 11

what is heart burn?

Answer 11

acids from stomach back up to esophagus

Question 12

describe the stomach

Answer 12

j shaped organ, strong acid, goblet cells embedded in stomach lining.

Question 13

how many hours does it take for food to turn into a liquid

Answer 13

4

Question 14

what is the liquid from food called?

Answer 14

chyme

Question 15

food liquid goes to which intestines?

Answer 15

small

Question 16

how long is the small intestines?

Answer 16

6 meters, 2 cm diameter (why its small)

Question 17

where are the nutrients from food absorbed

Answer 17

small intestines

Question 18

what is the small intestines made of?

Answer 18

villi

Question 19

what are villi made of?

Answer 19

microvilli

Question 20

what are villi?

Answer 20

finger like projections that increase surface area for more absorption.

Question 21

how long is the large intestines?

Answer 21

1.5 meters, 6 1/2 cm in diameter

Question 22

what is absorbed in the large intestines?

Answer 22

water, salts, whatever the small intestines doesn’t absorb

Question 23

what is the main job for the large intestines?

Answer 23

store indigestible waste products until eliminated.

Question 24

where is the appendix located?

Answer 24

front end of the large intestines

Question 25

what does the appendix do?

Answer 25

fight infection

Question 26

what is a apendectomy?

Answer 26

surgical removal of appendix before it ruptures

Question 27

peritonitis is what?

Answer 27

appendix ruptures (can be deadly)

Question 28

what is the back end of the large intestines?

Answer 28

colon

Question 29

the colon enters what?

Answer 29

rectum

Question 30

the opening to the rectum is what?

Answer 30

Anus

Question 31

sight of defecation is what?

Answer 31

poop

Question 32

defecation contains what?

Answer 32

bacteria

Question 33

high fiber diets are good for what?

Answer 33

lower risk of colon cancer

Question 34

the largest gland in the body is what?

Answer 34

liver

Question 35

the liver contains what?

Answer 35

bile duct

Question 36

what does a bile duct do?

Answer 36

transport bile, a digestive fluid produced by the liver, to the gallbladder

Question 37

what is the main job of the liver?

Answer 37

filters blood of toxins, produces bile, bile is stored in gall bladder

Question 38

what is jaundice?

Answer 38

liver disorder

Question 39

what is cirrhosis?

Answer 39

liver becomes hard and fatty, can not regenerate healthy cells

Question 40

what is obesity?

Answer 40

over 20% of ideal body weight, caused by how you were raised and maybe genetic

Question 41

what is Bulimia nervosa

Answer 41

(binge and purge), kidney damage, affects the heart

Question 42

what is anorexia nervosa?

Answer 42

fear of weight gain, starvation, low blood pressure, irregular heart beat