Human BODY

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Across
  1. 3. bone marrow serves as an energy reserve.
  2. 4. contain the antigens of dead or weakened pathogens.
  3. 5. skeleton consist of the skull, ribs, spine, ans sternum.
  4. 6. hold the bones of a joint in place.
  5. 9. synthesize large amounts of hemoglobin, which carries oxygen.
  6. 10. provides structure and support, gives shape and structure to the body
  7. 12. requires a molecule of iron to complete its formation.
  8. 14. lower chamber of the heart.
  9. 15. help defend the body from disease.
  10. 16. upper chamber of the heart.
Down
  1. 1. vessels that carry blood away from the heart.
  2. 2. cell fragments involved with blood clotting.
  3. 7. defensive proteins that attack it during later infections.
  4. 8. store Calcium.
  5. 10. sends electrical impulses to atrioventricular node.
  6. 11. tissue characterized by cells that are embedded in matrix.
  7. 13. is the cause of AIDS.
  8. 17. cells are T and B cells that don´t respond the first time they are exposed to the pathogen but will recognize and attack it during later infections.