What is a first class lever
The fulcrum is in the middle between the load and the effort
Example of a first class lever
Flexion of the neck where your the C1 vertebrae and cranium meet
What is a second class lever
Load is between falcrum and effort
What is a third class lever
With the effort between the fulcrum and the load
Example of a second class lever
Bicep curl
Example of a third class lever
Standing on your tip toes