What is the most common lever in the human body?

1 Answer
Jan 23, 2017

Third class of lever.

Explanation:

In first class lever, fulcrum is at the center, while weight and force are on either side of it. For example in scissors. In human body, it is rare but one example could be moving head using muscles around neck, moving head using joint in between.

In second class lever, it is the weight which is located in the center, while force and fulcrum are on either side of it like in case of a wheelbarrow. In a human body one could find it when one puts one's weight on toes.

The third class of lever, is when force is located in the center and weight and fulcrum are at other ends. In human body, one can find plenty of its uses, whether, it is use of palm to lift weight, or lifting a football (using legs) or using fingers to pick up something or using a shovel etc.