Part 2

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Across
  1. 2. contraction of heart muscle
  2. 5. smallest arteries; control flow into capillary beds via vasodilation and constriction
  3. 8. generates impulses about 75 times/minute
  4. 10. smallest blood vessels
  5. 11. carry blood away from the heart
  6. 12. heart rate less than 60 beats/min
  7. 14. condition where the number of circulating platelets is deficient
  8. 16. carry the impulse to the heart apex and ventricular walls
  9. 17. Force per unit area exerted on the wall of a blood vessel by its contained blood
  10. 19. thrombus found in blood
Down
  1. 1. low BP in which systolic pressure is below 100 mm Hg
  2. 3. fragments of megakaryocytes
  3. 4. distal to elastic arteries; deliver blood to body organs and are active in vasoconstriction
  4. 6. Sustained elevated arterial pressure of 140/90 or higher
  5. 7. Thick-walled arteries near the heart; the aorta and its major branches
  6. 9. heart rate over 100 beats/min
  7. 13. carry blood toward the heart
  8. 15. Are formed when capillary beds unite
  9. 18. relaxation of heart muscle