Digestive System

link to games to play to learn the digestive system - Anatomy Arcade

link to website that highlights the parts and describes each part innerbody.com - digestive system

link to website that highlights the parts and has short descriptions to read for each. Digestive System Tutorial

pictures/diagrams used in class:

Digestive System in Color

Structures in Mouth

How Food Moves Through the Esophagus

peristalsis = waves of muscle contractions that push food through our digestive tract or alimentary canal

sphincter = muscle that constricts and relaxes to let substances pass through

Stomach Structures

Pyloric Sphincter

Digestion Helpers

Liver = organ that produces bile

Bile = fluid produced by liver that helps break down fats

Gallbladder = organ that stores bile

Pancreas = organ that produces enzymes needed in digestion

Enzymes = substances that start reactions to break down food

Pancreatic juice = fluid contains enzymes that

- - - - break down sugars & starches into simple sugars
        break down fats into fatty acids & glycerol
      - break down proteins into amino acids

Small Intestines

Small intestines = organ that absorbs nutrients into the bloodstream; it is called small because tube has a small diameter but it is actually very long.

Large Intestines

large intestines = organ that absorbs water as stool begins to form; it is called large because tube has a large diameter but it is actually very short.

Alimentary canal, also called digestive tract or gastrointestinal tract, is the pathway by which food enters the body and solid wastes are expelled.

The alimentary canal includes the

and anus.

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