Introduction to Levers

Why use physics in Comparative Anatomy? All matter is subject to the laws of physics, and by using these tools we can understand how living things are able to move and grow within these constraints. Why memorize all the bones and muscles of living organisms if we can’t explain how these anatomical structures use energy to direct force and movement? This site explores the basics of how bone and muscle attachment facilitate movement of the body, and the ways that different organisms’ bodies display various lever systems that accomplish movement.

What is a lever?

1st Order Lever                                                               

2nd Order Lever

3rd Order Lever

Bodies in Motion

Practice Your Lever Skills!