Question

where is the class 3 lever system located in the body?
quadriceps muscle of the leg
pectoral muscle of the chest
triceps muscle of the arm
hamstring muscle of the leg
biceps muscle of the arm

Explanation:

In the human body, the biceps - muscle of the arm represents a Class 3 lever system. In a Class 3 lever, the effort is between the fulcrum and the load. When the biceps contracts to lift a load (such as holding an object in the hand), the elbow joint is the fulcrum, the biceps applies the effort, and the weight in the hand is the load.

Answer:

E. Biceps muscle of the arm