Thursday, April 15, 2010

Parts of the Digestive System

The Digestive System

Mouth:-
1. Mechanical digestion
· Making food into small pieces – easier digest
2. Saliva
· Chemical digestion - Carbohydrates – sugar
Amylase - (bread, rice)
· Slimes food - slide down the esophagus

Esophagus:-
1. Slides food down to stomach

Stomach:-
1. Mechanical digestion churning food
2. Stores food
3. Chemically digest protein (meat)
· Makes Acid to help break apart protein (meat)
·Makes an Enzyme called pepsin which helps digest protein.

Small Intestine:-
· Fats – bile from liver / enzyme – lipase
Proteins – finished being digested – pepsin
Carbohydrates – finish being digested - enzyme amylase
(Digested food – protein, carbohydrates fats go into your blood.)

Pancreas:-
1. Makes all of your digestive enzymes that go into the small intestine.
2. Makes insulin – which makes your cells suck up the sugar in your blood.

Liver:-
1. Makes bile which goes to the small intestine – help digest fat.
2. Cleans your blood from poisons.

Large Intestine: - (Colon)
1. Keeps undigested food (waste).
2. takes up all your water.

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