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Your Amazing Muscles: The Body's Movers

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Feel Your Power!

Feel Your Power!

Hold your arm out straight with your palm facing up. Now slowly bend your elbow and bring your hand up toward your shoulder. Do it again and this time place your other hand on the front of your upper arm. Did you feel something? There is a lump that appears and then disappears as you move. That lump is a muscle doing its job. What do you think is happening inside your arm right now?

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How Do Your Body Parts Work?

The Dr. Binocs Show · 58:20

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