Human Body

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Across
  1. 4. The blood vessel that carries blood away from the heart
  2. 7. Prevent and stop bleeding. Component of blood
  3. 8. Helps body recover and distribute nutrients. Component of blood.
  4. 10. organ where gas exchange occurs
  5. 11. The muscle/organ that controls breathing
  6. 12. Collects air from the environment
  7. 13. The body system where gas exchange occurs.
Down
  1. 1. Changing of carbon dioxide and oxygen
  2. 2. The body system that transports nutrients and important gas throughout the body
  3. 3. The organ in the circulatory system that pumps blood
  4. 5. Little tubes where oxygen and nutrients leave the blood and carbon dioxide and waste enters the blood
  5. 6. Also known as the "windpipe"
  6. 9. The blood vessels that bring blood back to the heart
  7. 14. The color of blood