Question

Which is the hardest muscles in our body​

Answer 1

Answer:

Answer is heart.

Explanation:

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Answer 2

heart

The hardest working muscle is the heart. It pumps out 2 ounces (71 grams) of blood at every heartbeat. Daily the heart pumps at least 2,500 gallons (9,450 liters) of blood. The heart has the ability to beat over 3 billion times in a person's life.

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