The Digestive System The Digestive System Mechanical Digestion Chemical Digestion Enzymes Absorption

Some helpful things to recall… Involuntary Muscle Muscles you cannot control, such as the muscles surrounding your intestines Red Blood Cell Carry oxygen and nutrients Diffusion Going from an area of high concentration to low concentration

Digestive System Structures: Mouth, Esophagus, Stomach, Small Intestine, Large Intestine Function: To break down food and take in the nutrients

Digestive System

Mechanical Digestion The physical breakdown of food. (chewing, mixing, churning)

Mechanical Digestion http://www.youtube.com/watch?v=8J5cDMrsiQ8

Chemical Digestion When chemicals break down into smaller parts. Protein to amino acids, Carbohydrates into sugars, etc.

Chemical Digestion

Enzyme A protein in your body that speeds up a chemical reaction. They help break down food.

Enzyme

Enzymes

Absorption The intake or uptake of nutrients that occurs in your small intestine.

Absorption