Human Body Systems

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Across
  1. 1. Basic unit of structure and life
  2. 4. Lower chamber in your heart
  3. 7. Where digestion begins
  4. 9. Blood vessel that carries blood back to the heart
  5. 11. Muscular tube that connects the mouth to the stomach
  6. 12. Example: lung, heart, kidney, stomach
  7. 13. Hint: tiny finger like things
Down
  1. 1. Hint: smallest blood vessel
  2. 2. organ that exchanges oxygen and carbon dioxide with your blood
  3. 3. Liquid part of blood
  4. 5. A little filter at the bottom of your kidney
  5. 6. Group of similar cells that perform the same function
  6. 8. Hint: forms scabs
  7. 9. Upper chamber in your heart
  8. 10. Hint: windpipe