The Cardiovascular System

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Across
  1. 2. circulation of blood from the heart to the lungs and vice-versa
  2. 3. fatty substance
  3. 4. body cells break down nutrients (oxygen present) to release energy
  4. 7. circulation of blood from the heart to the tissue capillaries and vice-versa
  5. 9. largest artery in the body
  6. 10. artery pertaining to the arm
  7. 12. chest
  8. 16. innermost layer of epithelial cells
Down
  1. 1. two large veins that carry oxygen-poor blood to the heart
  2. 5. walls that separate the four chambers of the heart
  3. 6. clot
  4. 8. smaller types of blood vessels
  5. 11. types of blood vessels in the body
  6. 13. vessel that contains valves to prevent blood from flowing back.
  7. 14. opening of a blood vessel
  8. 15. upper heart chambers