digestive system

Question 1

breaking down food chemically or mechanically

Answer 1

digesstion

Question 2

the elimination of feces (unabsorbed materials) from the body

Answer 2

defacation

Question 3

eating

Answer 3

ingestion

Question 4

swallowing and peristalsis pushes food thru the GI tract

Answer 4

propulsion

Question 5

digestive organs create and release enzymes and acids

Answer 5

secretion

Question 6

nutrients pass from the GI tract into the bloodstream

Answer 6

absorbtion

Question 7

uses certain enzymes/chemicals to break down nutrients

Answer 7

chemical digestion

Question 8

physically breaking down food substances into smaller particles

Answer 8

mechanical digestion

Question 9

aka alimentary canal

Answer 9

GI tract

Question 10

aka GI tract

Answer 10

gastrointestinal tract

Question 11

pathway that food follows from ingestion to defacation

Answer 11

GI tract

Question 12

food does not enter them, but they help with the process of digestion

Answer 12

accessory organs

Question 13

includes mouth, salivary glands, pharynx, esophagus, stomach, small intestine, large intestine, rectum, anus

Answer 13

GI tract

Question 14

digestion is just the _ of food thru the body and does not include filtering or _ of wastes

Answer 14

flow, elimination

Question 15

includes teeth, tongue, liver, gallbladder, pancreas

Answer 15

accessory organs

Question 16

order of digestion

Answer 16

mouth, salivary glands, esophagus, cardiac sphincter, stomach, small intestine, (liver, pancreas, gallbladder - attached to small intestine), nutrients absorbed by villi and go to bloodstream, leftover stuff goes to large intestine/colon, water is removed to make feces and then it is defacated

Question 17

what are the accessory organs of the digestive system that are not part of the gi tract?

Answer 17

teeth, tongue, liver, gallbladder, pancreas

Question 18

what are the 3 parts of the small intestine?

Answer 18

duodenum, jejunum, and ileum

Question 19

what valves separate the esophagus and stomach

Answer 19

cardiac sphincter

Question 20

what valves separate the stomach and the duodenum

Answer 20

pyloric sphincter

Question 21

what valve separates the ileum and colon

Answer 21

ileocecal valve

Question 22

what are the 3 parts of the large intestine/colon

Answer 22

ascending, transverse, and descending colon

Question 23

what are the functions of the liver and gallbladder

Answer 23

• liver: produce bile and export it to the duodenum
• gallbladder: primarily stores, concentrates, and releases bile

Question 24

what’s the function of the pancreas

Answer 24

produces enzymes that help to digest food

Question 25

whats the longest part of GI tract

Answer 25

small intestine

Question 26

why is the small intestine longer than the large intestine?

Answer 26

it needs more volume to digest and absorb nutrition, because it is the main place where it occurs

Question 27

what would pass through the lumen of the esophagus

Answer 27

chewed and softened food

Question 28

what is the importance of the gastric lumen and gastric pits in the stomach

Answer 28

- lumen: mixes food with stomach juices - pits: release juice to break down food

Question 29

what is the importance of the villus in the small intestine?

Answer 29

they increase the volume of the small intestine so it can intake more food

Question 30

whats the importance of goblet cells in the large intestine

Answer 30

they produce mucus that protects the large intestine form digestive fluids, and helps food move more smoothly

Question 31

when standing up, water moves through the esophagus _. when laying down, water moves through the esophagus _.

Answer 31

faster, slower

Question 32

is the speed of water affected by gravity

Answer 32

yes

Question 33

what valve is between the esophagus and stomach

Answer 33

cardiac sphincter

Question 34

whats the function of the digestive system

Answer 34

breaks down food and drink into small molecules that cells can use

Question 35

what is the one way track through the digestive system called

Answer 35

GI tract

Question 36

what are the organs of the GI tract

Answer 36

mouth, esophagus, stomach, small intestine, large intestine, colon, rectum, anus

Question 37

what is the function of the mucosa tissue layer

Answer 37

creates digestive juices that break down food

Question 38

what is the function of the muscularis mucosae tissue layer

Answer 38

assists in moving food thru GI tract

Question 39

what is peristalsis

Answer 39

rhythmic contraction and relaxation of muscularis mucosae

Question 40

where does carb/starch digestion occur

Answer 40

mouth

Question 41

where does protein digestion occur

Answer 41

small intestine

Question 42

where does lipid digestion occur

Answer 42

small intestine

Question 43

where does absorption of nutrients occur

Answer 43

small intestine

Question 44

what is a colonoscopy

Answer 44

camera is up anus to search GI tract

Question 45

what is esophagogastroduodenoscopy

Answer 45

camera is down throat to search GI tract

Question 46

what is an upper GI series

Answer 46

examines your esophagus, stomach and the first part of your small intestine (duodenum

Question 47

what is lower GI series

Answer 47

examines the lower part of your small intestine (ileum) and your large intestine, including your colon and rectum

Question 48

is blood in the stool normal

Answer 48

no