Animals (8)- The function of digestive organs

Question 1

function of salivary glands

Answer 1

produces salivary amylase, and lubricates food into a bolus.

Question 2

function of epiglottis

Answer 2

seperate food from entering windpipe

Question 3

function of esophagus

Answer 3

transports bolus through stomach through peristalsis.

Question 4

function of esophageal sphincter

Answer 4

a muscular ring that prevents stomach acids from backflowing into the esophagus

Question 5

function of stomach

Answer 5

chemical and mechanical digestion takes place here. lined with gastric glands that produce gastric juice. mucas coats the walls of the stomach to protect from acids.

Question 6

what is the mixture the stomach creates called

Answer 6

chyme

Question 7

pyloric sphincter function

Answer 7

controls the release of chyme into the small intestine

Question 8

small intestine function

Answer 8

macromolecules are broken down into their component molecules and absorbed through villi

Question 9

duodenum function

Answer 9

walls covered in villi. secretions from the pancreas and gallbladder are added to the mixture.

Question 10

jejunum function

Answer 10

breaks down remaining protiens and carbohydrates for absorbtion

Question 11

Ilium

Answer 11

contains fewer and smaller villi, absorb remaining nutrients and push food to the large intestine.

Question 12

Pancreas function

Answer 12

releases pancreatic fluid into the duodenum, which performs chemical digestion on protiens, lipids, and carbs.

Question 13

functions of the liver

Answer 13

the liver secretes bile, made of bile salts and pigments. bile salts are essential for digestion of lipids.

Question 14

why are bile salts crucial in digesting fats

Answer 14

because fats are insoluble in water, they are suspended in chyme as droplets. bile salts emulsify the fat droplets making the smaller and smaller for absorbtion.

Question 15

what is the gallbladder used for

Answer 15

storage of bile from the liver

Question 16

large intestine function

Answer 16

absorb water (about 90%) is absorbed back into blood. a multitude of anearobic bacteria continue to break down unidgested matter further, producing vitamins absorbed into bloodstream.