Circulatory System

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Across
  1. 2. This binds to oxygen in the lungs and transports it to cells
  2. 5. The upper chamber of the heart
  3. 6. The lower chamber of the heart
  4. 8. These vessels contain valves to prevent the back-flow of blood. They carry blood to the heart
  5. 11. This carries blood from the lungs back to the heart
  6. 12. Specialised cells in the blood that are responsible for clotting
  7. 13. What transports oxygen and nutrients to all parts of the body
  8. 14. This carries blood from the heart to the lungs
  9. 16. Disc shaped cells that contain haemoglobin for carrying oxygen
  10. 18. This is the largest blood vessel, it contains the highest pressure of all the blood vessels
Down
  1. 1. The straw coloured fluid in blood that carries the blood cells
  2. 3. Blood from the pulmonary vein enters this chamber
  3. 4. How many times does the heart beat on average per minute?
  4. 7. This divides the heart into the right and left sides
  5. 8. Brings blood into the heart from the body
  6. 9. blood cells that fight against infection
  7. 10. The smallest vessels that bring oxygen and nutrients to the cells and absorb/ remove carbon dioxide and wastes from cells
  8. 15. These carry blood away from the heart
  9. 17. The heart rate will increase with exercise due to a greater need for what molecule?