Cardiovascular and Respiratory System Crossword

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Across
  1. 2. The force that blood exerts on the walls of the arteries
  2. 5. The upper chambers of the heart
  3. 8. Blood vessels that carry blood to the heart
  4. 11. A collection of organs that transports blood throughout the body
  5. 13. A collection of organs whose primary function is to take in oxygen and expel carbon dioxide
  6. 14. The exchange of oxygen and carbon dioxide between living cells and their environment, which includes breathing and cellular respiration
Down
  1. 1. The circulation of blood between your heart and lungs
  2. 3. When oxygen is used by cells to release energy stored in molecules of the sugar glucose
  3. 4. A tiny blood vessel that allows an exchange between blood and cells in tissue
  4. 6. Blood vessels that carry blood away from the heart
  5. 7. The circulation of blood between your heart and the rest of your body
  6. 8. Flaplike structures that open and close to prevent blood from flowing backward
  7. 9. An organ that pumps blood throughout the body
  8. 10. The fluid that carries gases, nutrients, and waste through the body and it is made up of platelets, white blood cells, red blood cells, and plasma
  9. 12. The lower chambers of the heart