The Digestive System The Digestive System The Digestive

The Digestive System

The Digestive System

The Digestive System The Mouth

The Digestive System The Mouth • Physical Digestion

The Digestive System The Mouth • Physical Digestion • Chewing

The Digestive System The Mouth • Physical Digestion • Chewing • Chemical Digestion

The Digestive System The Mouth • Physical Digestion • Chewing • Chemical Digestion • Saliva starts starch digestion

The Digestive System

The Digestive System Esophagus

The Digestive System Esophagus • Connects mouth to stomach

The Digestive System

The Digestive System Stomach

The Digestive System Stomach • Chemical digestion

The Digestive System Stomach • Chemical digestion • Enzymes and hydrochloric acid

The Digestive System Stomach • Chemical digestion • Enzymes and hydrochloric acid • begin protein digestion

The Digestive System

The Digestive System Liver

The Digestive System Liver • Produces bile to emulsify fat

The Digestive System

The Digestive System Pancreas

The Digestive System Pancreas • Produces most digestive enzymes

The Digestive System Pancreas • Produces most digestive enzymes • These enzymes digest carbohydrates, proteins, and fats

The Digestive System

The Digestive System Duodenum

The Digestive System Duodenum • First part of small intestine

The Digestive System Duodenum • First part of small intestine • Receives bile from liver

The Digestive System Duodenum • First part of small intestine • Receives bile from liver • Receives enzymes from pancreas

The Digestive System Duodenum • First part of small intestine • Receives bile from liver • Receives enzymes from pancreas • Adds more enzymes

The Digestive System

The Digestive System Small Intestine

The Digestive System Small Intestine • Chemical Digestion completed

The Digestive System Small Intestine • Chemical Digestion completed • Proteins digested into amino acids

The Digestive System Small Intestine • Chemical Digestion completed • Proteins digested into amino acids • Carbohydrates digested into simple sugars

The Digestive System Small Intestine • Chemical Digestion completed • Proteins digested into amino acids • Carbohydrates digested into simple sugars • Fats digested into fatty acids and glycerol

The Digestive System Small Intestine • Absorption of all nutrients into bloodstream

The Digestive System Small Intestine • Absorption of all nutrients into bloodstream • amino acids

The Digestive System Small Intestine • Absorption of all nutrients into bloodstream • amino acids • simple sugars

The Digestive System Small Intestine • Absorption of all nutrients into bloodstream • amino acids • simple sugars • fatty acids and glycerol

The Digestive System Small Intestine • Absorption of all nutrients into bloodstream • amino acids • simple sugars • fatty acids and glycerol • vitamins and minerals

The Digestive System

The Digestive System Large Intestine

The Digestive System Large Intestine • reabsorbs water back into bloodstream

The Digestive System Large Intestine • reabsorbs water back into bloodstream • healthful bacteria make some vitamins from waste

The Digestive System

The Digestive System Rectum

The Digestive System Rectum • Temporarily stores wastes before evacuation

The Digestive System

The Digestive System Anus

The Digestive System Anus • Exit for waste

The Digestive System Anus • Exit for waste • Kept closed by anal sphincter muscle

Digestion Summary

Enzyme Summary

End of Digestion Summary