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The most common lever in a human body is the third class
Where is the lever in the human body?
Human bodies' bones serve as lever arms, joints serve as pivots, and muscles supply the force needed to lift objects. The body's levers for generating human movement are made up of bones, ligaments, and muscles. Simply put, a joint, which is where two or more bones come together, serves as the axis (or fulcrum), and the muscles that span the joint exert force to move a weight or resistance.
The third-class lever is the kind of lever found most frequently in the human body. The applied force with this type of lever is in the middle, between the resistance and the axis of rotation. In this lever configuration, the force arm is never longer than the resistance arm.
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