Explanation should include

• a description of the three classes of lever systems
• the components and functions of each system
• examples of how each lever class functions in the human body.

Teacher Resource:

A Step-by-Step Guide to the REBA Assessment Tool, ErgoPlus

Process/Skill Questions:

• How do lever systems complete anatomical body function?
• What are the main systemic body functions of levers in the human body?
• What are the anatomical and physiological effects of levers in providing muscular movement?