Shania Barela Unit 4

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Across
  1. 4. a procedure that uses a "balloon" to open blocked blood vessels
  2. 5. the longest phase when blood is filling the atria
  3. 7. one complete sequence of pumping/filling
  4. 10. the phase when blood is sent out of the heart
  5. 13. small blood vessels that connect arteries to capillaries
  6. 16. the inner layer of veins and arteries
  7. 18. shows the electrical activity within the heart
  8. 19. persistent high blood pressure
  9. 20. the middle layer of arteries and veins
Down
  1. 1. uses dyes and x-rays to look at blood flow through blood vessels
  2. 2. small blood vessels that connect capillaries to veins
  3. 3. causes blood pressure to be lower
  4. 6. Shows the structure within the heart
  5. 8. persistent low blood pressure
  6. 9. the wall located between the right atrium and right ventricle
  7. 11. the outermost layer of arteries and veins
  8. 12. a tool used to measure blood pressure
  9. 14. narrows the lumen of the blood vessels
  10. 15. higher than normal heart rate
  11. 17. a specialized region of tissue that behaves like both nervous and muscle tissue