Digestive Systems

Question 1

function of mouth

Answer 1

Mastication and addition of saliva for lubrication of food

Question 2

mouth digestion

Answer 2

Some Amylase for beginning of digestion of starch to disaccharides

Question 3

does the mouth play a role in absorption

Answer 3

no

Question 4

function of stomach

Answer 4

Cardiac portion secretes mucus and mixed with digested food. In the Fundic region, gastric gland secretes HCL that lowers pH to 1.5 -2.5

Question 5

stomach digestion

Answer 5

Pepsinogen secreted here is converted to Pepsin through HCL and this breakdown proteins.

Question 6

does the stomach play a role in absorption

Answer 6

no

Question 7

function of small intestine

Answer 7

Chemical digestion – catalyzed by enzymes from
the small intestine and in pancreatic secretions and
enzymes. Absorption

Question 8

small intestine digestion

Answer 8

Amylase catalyzing starch breakdown to glucose.
Proteases (trypsin and chymotrypsin) + peptidases catalyzing break down of proteins to amino acids.
Lipase breaking down triglyceride (fat) to fatty
acid and glycerol

Question 9

does the small intestine play a role in absorption

Answer 9

Yes. Glucose, amino acids, minerals (macro and
trace) as cations, anions, and vitamins.

Question 10

function of ceca

Answer 10

Microbial fermentation of ingested constituents

Question 11

ceca digestion

Answer 11

Breakdown of cellulose and polysaccharides

Question 12

does the ceca play a role in absorption

Answer 12

Volatile Fatty Acids, B- Vitamins and Vitamins K.

Question 13

function of colon

Answer 13

water absorption

Question 14

colon digestion

Answer 14

Probably little but continuation of microbial
fermentation

Question 15

does the colon play a role in absorption

Answer 15

Water together with ions.

Question 16

what does renin do

Answer 16

it coagulates milk proteins (fat to fatty acids) in young animals

Question 17

what does the tongue do

Answer 17

generates saliva and pushes food to esophagus

Question 18

what glands create saliva

Answer 18

sublingual, mandibular, and parotid

Question 19

what does saliva do

Answer 19

lubricates food and produces amylase

Question 20

what connects the esophagus and stomach

Answer 20

cardiac valve

Question 21

what does the stomach do

Answer 21

secretes hydrochloric acid and other enzymes/chemicals to food

Question 22

what connects the stomach and small intestine

Answer 22

pyloric valve

Question 23

what does the gallbladder do

Answer 23

stores bile, which helps break down fats

Question 24

what does the liver do

Answer 24

secretes bile

Question 25

what does the pancreas do

Answer 25

secretes juices to further break down fats, carbs, and proteins

Question 26

what are the 3 sections of the small intestine

Answer 26

duodenum, jejunum, and ileum

Question 27

what is the cecum

Answer 27

the blind gut between the small and large intestine

Question 28

what does the large intestine do

Answer 28

absorbs water and secretes mucous to make passage easier

Question 29

what does the colon do

Answer 29

largest portion of large intestine and plays largest role

Question 30

define rectum

Answer 30

final portion of large intestine and forms solid waste

Question 31

define anus

Answer 31

excrete undigested food from body