The strongest muscle in the human body relative to its size is the masseter.
Why it is true
Located in the jaw, this muscle is responsible for chewing and can exert incredible force on the molar teeth, surpassing any other muscle in the body.
Source: Anatomy Today
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Related facts
The strongest muscle in the human body is the masseter (jaw).
The strongest muscle in the human body is the masseter, in the jaw.
The strongest muscle in the human body relative to its size is the masseter, located in the jaw.
The masseter, or jaw muscle, is considered the strongest muscle in the human body relative to its size.