Muscular System

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Across
  1. 4. The muscles in our arms help us to ___ things (5 letters).
  2. 6. Muscles used for breathing (7 letters).
  3. 7. Muscles that help us maintain our posture (7 letters).
  4. 8. Muscles we use for smiling and facial expressions (8 letters).
  5. 10. Muscles used for chewing food (4 letters).
Down
  1. 1. The largest muscle in the human body (7 letters).
  2. 2. Muscles that work in harmony with bones to facilitate movement (7 letters).
  3. 3. The muscle responsible for pumping blood (4 letters).
  4. 5. Muscles that we can control voluntarily (8 letters).
  5. 9. helps the heat pump