The muscular system

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Across
  1. 4. Skeletal muscles are a type of _________
  2. 6. All ______ are made up of an elastic fiber that is kind of like the material in rubber bands.
  3. 7. Smooth muscles are found in the hollow wall of _____ such as the heart.
  4. 9. Your heart pumps ______ without you having to tell it.
  5. 10. The main function of the muscular system is to make the body move by __________ muscles.
  6. 11. Tens of thousands of ____________ make up the muscles.
Down
  1. 1. A major organ that pumps blood.
  2. 2. Your muscles help you move by contrasting and ___________
  3. 3. Skeletal muscles are muscles located in between two ______
  4. 5. You have more than _____ muscles in your body.
  5. 8. _________ are a type of major organs.
  6. 9. The heart contrasts and separates to pump the blood around the body.