Tour of the Human Body Systems

The Tour Starts Here!

The Immune System
The Nervous System
The Excretory System
The Respiratory System
The Circulatory Syatem
The Digestive System
The Skeletal System
The Muscular System
Glossary of Terms
The Functions of Digestive Enzymes

Enzymes: A protein that speeds up chemical reactions in the body.
 
Amylase: Helps break down starch into sugar
 
Protease: Helps break down proteins into peptides or amino acids
 
Lipase: Helps break down fats into fatty acids