digestive system

Question 1

gastric juice is composed of…

Answer 1

mucus, HCL and enzymes

Question 2

the secretory duct of the pancreas discharges into…

Answer 2

duodenum

Question 3

carbs are stored in liver and muscles as….

Answer 3

glycogen

Question 4

what is the function of vili

Answer 4

to increase surface area of the organ and absorb nutrients

Question 5

water is MAINLY absorbed in

Answer 5

Large intestines

Question 6

which enzyme attacks starch?

Answer 6

amylase(ptyalin)

Question 7

amylase breaks down…

Answer 7

starches

Question 8

peptidase breaks down..

Answer 8

protein

Question 9

pepsin breaks down…

Answer 9

protein

Question 10

lipase breaks down…

Answer 10

lipids(fats)

Question 11

tripsin breaks down ..

Answer 11

protein

Question 12

chymotrypsin breaks down.

Answer 12

protein

Question 13

sucrase breaks down

Answer 13

sucrose

Question 14

maltase breaks down

Answer 14

maltose

Question 15

lactase breaks down

Answer 15

lactose

Question 16

ingestion is

Answer 16

the taking in of food by mouth, pharynx and esophagus

Question 17

ingestion involves

Answer 17

mastication and deglutition

Question 18

digestion is..

Answer 18

food being broken down into smaller components; mechanically and chemically performed by mouth, stomach and small intestine

Question 19

absorption is…

Answer 19

passing of digestive end products into the blood stream from GIT

Question 20

elimination

Answer 20

ridding of feces

Question 21

function of the oral cavity

Answer 21

To mechanically and chemically break down food in the mouth, turns food into bolus, tongue helps propel it to the pharynx for deglutition, epiglottis prevents bolus from entering respiratory tract and oropharnx is part used for swallowing.

Question 22

function of pharynx

Answer 22

facilitate swallowing(deglutition) by oropharynx

Question 23

function of esophagus

Answer 23

moves bolus from pharynx to stomach, uses peristalsis, ‘gastro-intestinal sphincter’ prevents it from coming back up

Question 24

function of stomach

Answer 24

mechanical& chemical digestion, secretes gastric juice, , ‘pyloric sphincter’ keeps contents in stomach til thoroughly mixed with gastric juice

Question 25

what are the layers of stomach

Answer 25

-mucosa(innermost) secretes gastric juice
sub-mucosa- supports mucosa gland
muscular- thickest layer, not evenly lined up to alloow vigorous peristalsis
serosa- part of abdominal peritoneum

Question 26

function of small intestine

Answer 26

responsible for chemical digestion and absorption

Question 27

large intestine

Answer 27

absorbswater, vitamins, minerals and eliminates waste

Question 28

caecum

Answer 28

entrance to LI

Question 29

appendix

Answer 29

dead end tube on LI

Question 30

rectum

Answer 30

excretes feces

Question 31

salivaryglands

Answer 31

functions to produe saliva

Question 32

fucntion of saliva

Answer 32

prevent dessication, flushes mouth and promotes taste

Question 33

pancreas

Answer 33

produces enzymes and other substances for a variety of processes, including digestion.

• both exocrine and endocrine glands
• pancreatic enzymes drain into pancreatic duct and enter duodenum

Question 34

liver

Answer 34

detoxes blood of metabolic and cellular waste by-products

• process certain substances for elimination(alcohol and medicine)
• store glycogen
• produce some blood clotting factors
• store fat-soluble vitamins and iron

Question 35

carbs break down into

Answer 35

monosaccharides(glucose)

Question 36

fats break downinto

Answer 36

FA(3) and glycerol(1)

Question 37

protein breaks down into

Answer 37

amino acids