Muscles

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Across
  1. 2. Located only in the heart
  2. 3. When a muscle is contracted
  3. 5. Both slow and fast
  4. 6. Support quick powerful movements
  5. 8. Muscles attached to bone
Down
  1. 1. When a muscle is relaxed
  2. 4. Lines the inside of blood vessels and organs
  3. 7. Smaller movements