The Heart

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Across
  1. 5. The node that changes heart rate
  2. 8. Found in the Liver and Spleen these help phagocytize damaged red blood cells
  3. 9. Made of Albumins, Globulins, and Fibrinogen
  4. 10. These merge together to form veins
  5. 11. The smallest (in diameter) blood vessels
  6. 13. Largest chamber of the heart
  7. 14. Released by platelets, stimulate vasoconstriction
  8. 15. These are created when attacking a foreign object in the body
Down
  1. 1. The only artery that doesn't carry oxygenated blood
  2. 2. The most common blood type in America, making up 47% of the population
  3. 3. Developed in red bone marrow, are fragments of giant cells
  4. 4. The spike on EKG's
  5. 6. The vein that brings all the blood into the heart, split into inferior and superior
  6. 7. The lower chamber of the heart on both sides
  7. 12. These are molecules that trigger immune system responses