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Digestive system
digestive system
6
Biology
11th Grade
01/20/2013

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Term
MOUTH
Definition

site of both physical and chemical digestion. 

 

{teeth aid in phsical digestion.}

 

[salivary amalayse starts the digestion of Carbohydrates.]

Term
ESOPHAGUS
Definition

transports food from the mouth to the stomch.

covered in mucas to help good travel down. 

muscles squish food to move it to the stomache.

 

{the PHARYNX covers the trachea when food is swallowed, to ensure that food doesnt go down the wrong tube}

Term
STOMACH
Definition

elastic sack that holds food. HCL ensures that no bacteria survive.

 

pepsinogen gets activated by HCL and converts into pepsin to break down proteins in the stomach.

 

mucas protects the lining of the stomach from the HCL

Term

SMALL INTESTINE

DUODENUM,JEJENUM,ILLIUM

Definition

major site of digestion. 

pancreatic amalayse-finishes digestion of carbohydrates

bicarbonate- nutralizes HCL from stomch

Trypsin-  converts proteins into peptides

Lipase- converts lipids (processed by bile) into glyserol

(ENZYMES PRODUCED BY PANCREAS)

Term
LIVER AND GALBLADDER
Definition
bile is produced in the liver and stored in the galbladder where it is screated in to the small instestine and emuslfies large globs of fat so they can be processed by lipase.
Term
LARGE INTESTINE AND RECTUM
Definition
water and salts are absorbed in the large intestine. left overs are stored in the rectum  (poop)
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