Ch. 3 Circulatory System

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Across
  1. 4. which type of O blood is considered universal
  2. 6. the yellowish watery part of blood is called what?
  3. 7. Which blood cells carry oxygen from the lungs to all parts of the body?
  4. 10. the force of blood pushing against the walls of the blood vessels
Down
  1. 1. Which blood cells fight infections in the human body
  2. 2. blood vessels that carry blood AWAY from the heart to various parts of the body
  3. 3. this system is a group of organs and tissues that act as transfer stations
  4. 5. these are blood vessels that carry blood from all parts of the body back to the heart
  5. 8. What are the name of the blood cells that clot at the site of a wound
  6. 9. how many different blood types exist