The Digestive System

Front 1

structure of digestive system

Back 1

alimentary canal or gi tract

Front 2

function of digestive system

Back 2

digestion

Front 3

function of digestive system

Back 3

absorption

Front 4

wall of the digestive tract

Back 4

four layers of tissue (mucosa, submucosa, muscularis, serosa)

Front 5

mucosa

Back 5

protection

Front 6

submucosa

Back 6

blood supply

Front 7

muscularis

Back 7

smooth muscles, peristalsis

Front 8

serosa

Back 8

outermost protective layer

Front 9

mucosa

Back 9

composed of tough and stratified abrasion-resistant epithelium (in esophagus)

Front 10

irregular tube, open at both ends

Back 10

alimentary canal

Front 11

digestion

Back 11

breakdown

Front 12

digestion of food

Back 12

chemical and mechanical

Front 13

teeth

Back 13

used to break down food before it's swallowed

Front 14

mechanical breakdown

Back 14

churning of food in stomach

Front 15

chemical breakdown

Back 15

digestive enzymes and other chemicals acting on food as it passes through gi tract

Front 16

chemical digestion

Back 16

large food molecules reduced to smaller molecules absorbed through lining of intestinal wall and distributed to cells for use

Front 17

digestion

Back 17

process of altering chemical & physical composition of food so it can be absorbed and used by body cells

Front 18

large intestine

Back 18

organ of elimination

Front 19

feces

Back 19

waste material

Front 20

accessory organs

Back 20

teeth and tongue, gallbladder, appendix, salivary glands, liver, pancreas

Front 21

salivary glands

Back 21

parotid, submandibular, sublingual

Front 22

foods undergo 3 kinds of processing in the body

Back 22

digestion, absorption, metabolism

Front 23

digestion and absorption

Back 23

performed by the organs of the digestive system

Front 24

metabolism

Back 24

performed by all body cells

Front 25

digestive tract

Back 25

tube that extends from the mouth to the anus

Front 26

wall of digestive tract

Back 26

four layers of tissue

Front 27

lumen

Back 27

inside, or hollow space within digestive tract

Front 28

four layers of tissue

Back 28

mucosa, submucosa, muscularis, serosa

Front 29

serosa

Back 29

outermost covering or coat of digestive tube

Front 30

mesentery

Back 30

large double fold of peritoneal tissue

Front 31

peristalsis

Back 31

wavelike, rhythmic contractions of the muscular coat

Front 32

mesentery

Back 32

loops of digestive tract are anchored to posterior wall of abdominal cavity

Front 33

mouth

Back 33

oral cavity

Front 34

mouth

Back 34

hollow chamber with a roof, floor, and walls

Front 35

mouth

Back 35

food enters digestive tract through the mouth and process of digestion begins immediately

Front 36

mucus

Back 36

produced by lining of gi tract protects epithelium from digestive juices and lubricates

Front 37

roof (mouth)

Back 37

formed by hard and soft palates

Front 38

hard palate

Back 38

bony structure in anterior of mouth formed by parts of palatine and maxillary bones

Front 39

soft palate

Back 39

located above posterior or rear portion of mouth

Front 40

soft palate

Back 40

consists chiefly of muscle

Front 41

uvula

Back 41

hangs down from center of soft palate (cone shaped)