Circulatory System

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Across
  1. 2. allows the blood to flow in one direction
  2. 4. a gas we inhale to breathe
  3. 6. connects arteries and veins
  4. 8. network of channels that transport blood throughout the body
  5. 9. carries blood/nutrients to the heart
Down
  1. 1. muscular organ that pumps blood
  2. 3. main organ in the respiratory system that also plays a role in the circulatory system
  3. 5. red liquid circulating through the body
  4. 6. dioxide a gas we exhale out of our body
  5. 7. carries blood away from the heart