Blood Clotting Process

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Across
  1. 3. These vessels have semi lunar valves preventing blood flowing backwards
  2. 5. The first stage of blood clotting is the blood vessels
  3. 9. The blood clotting process is known as
  4. 11. Thrombokinaise plus ______ salts plus prothrombin makes thrombin
  5. 14. Thrombin converts fibrinogen into ______ threads
  6. 15. These vessels are semi permeable and allow the exchange of gases
Down
  1. 1. White blood cells are called
  2. 2. Ibuprofen, warfarin, aspirin and citalopram are ____ that can cause bleeding
  3. 4. Red blood cells are called
  4. 6. Blood protects, regulates and
  5. 7. The condition where blood does not contain enough clotting factor is called
  6. 8. Fibrin threads entrap red blood cells, bind them to the tissues to form a _____
  7. 10. After birth this organ no longer produces blood cells but produces lymphocytes for life
  8. 12. All formed elements are produced in the red bone _____
  9. 13. Blood is composed of 55% ____
  10. 16. These vessels carry blood away from the heart