Circulation, 21 words. by Rob Distelrath

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Across
  1. 1. Liquid inside of the lymphatic system.
  2. 3. the alternating expansion and relaxation of the artery wall.
  3. 6. The first branch of the aorta.
  4. 7. Tiny narrow blood vessels.
  5. 9. The process by which molecules move from an area of higher concentration to an area of lower concentration.
  6. 11. The body's disease fighters.
  7. 13. The largest artery in the body.
  8. 15. Takes oxygen from the lungs and delivers it to the rest of the body.
  9. 18. cells that send out a signal to pump the heart.
  10. 19. carries blood away from the heart.
  11. 20. Cell fragments that help blood clot together at a wound site.
Down
  1. 2. A disorder in which a person's blood pressure is normally over 140/90.
  2. 4. A hollow, muscular organ that pumps blood.
  3. 5. Occurs when blood flow to part of the heart doesn't receive blood and oxygen.
  4. 6. carries needed substances to cells, carries waste product away from cells, and fights disease.
  5. 8. The upper chamber of the heart.
  6. 10. The lower chamber of the heart.
  7. 12. The force blood exerts.
  8. 14. A flap of tissue that prevents blood from flowing backwards.
  9. 16. The liquid part of the blood.
  10. 17. carries blood to the heart.