Download Mouth Digestive System Mind Map

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Transcript
Digestive System
Mind Map
Name _____________________
Date ___________ Period _____
Types of Digestion
Mechanical digestion (MD) - physical change
3 Functions



break food into usable nutrient molecules
molecules are absorbed into the blood
eliminates waste
* food is broken down into smaller pieces
Chemical digestion (CD) - chemical change
* food is broken down into different chemical
molecules
Mouth



teeth cut food into small pieces (MD)
saliva breaks down starch (CD)
epiglottis covers the trachea to prevent
food from entering the lungs



Esophagus
Liver
liver makes bile
gallbladder stores bile
bile breaks down fat
molecules (MD)


connects mouth to stomach
peristalsis moves food through DS
Gallbladder
Small Intestine
Stomach


duodenum
makes three enzymes that
break down carbohydrates,
proteins & fats (CD)

villi
Pancreas
Large Intestine




duodenum— most chemical digestion
absorption through villi
churning motion – blender (MD)
pepsin breaks down protein (CD)
removes water from waste
eliminates waste from body