Circulatory system vocab

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Across
  1. 2. Part of the blood where nutrients are dissolved
  2. 3. Carries blood toward the heart
  3. 5. You have almost 5 liters of this in your body
  4. 7. The main organ of the circulatory system
  5. 9. Muscular thick-walled lower chambers which pump blood from the heart.
  6. 10. Thin-walled upper heart chambers which receive blood and pump blood to the ventricles
  7. 11. Allow blood to only flow in one direction
Down
  1. 1. Connects arteries and veins
  2. 4. Muscular central wall dividing the heart into two halves.
  3. 6. This is what gets distributed to the body
  4. 8. Carries blood away from the heart