The Circulatory Story

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Across
  1. 3. The liquid part of the blood
  2. 5. One of the top two chambers, or rooms, of the heart that receives blood from veins
  3. 7. The membrane that separates the left and the right sides of the heart
  4. 8. A comparison without the use of "like" or "as"
  5. 9. A red blood cell is knowns as an _____
  6. 10. A protein found in red blood cells that transports, or carries, oxygen
  7. 11. A vessel that connects arteries and veins
  8. 13. Related to the circulation of blood
  9. 14. The smallest, functioning unit of a living organism
  10. 15. A vessel that carries blood to the heart
Down
  1. 1. A protective sac that encloses the heart
  2. 2. A flap that opens and closes to allow blood to flow through the arteries
  3. 4. A comparison of two things, using the words "like" or "as"
  4. 5. A vessel that carries blood away from the heart
  5. 6. One of the two bottom chambers of the heart that receives blood from the atrium
  6. 8. This valve is located between the left atrium and the left ventricle
  7. 12. This valve is located between the left ventricle and the aorta
  8. 13. A "room" in the heart