Question

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

Explanation:

In the human body, the biceps - muscle of the arm is part of 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 acts as the fulcrum, the biceps muscle applies the effort, and the weight in the hand is the load.

Answer:

Biceps muscle of the arm