Cardiovascular system

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Across
  1. 1. the vessels merging from the capillaries returning blood to the heart
  2. 5. the volume of blood remaining in the chamber at the end of systole, after blood is ejected
  3. 7. pacemaker cells that are grouped together and control the rate of contractions this one is 70 action potentials per minute
  4. 9. pacemaker cell pathway that conducts electrical flow to the left atrium
  5. 10. pacemaker cells that are grouped together and control the rate of contractions this one is 50 action potentials per minute
  6. 11. terminal fibers made of pacemaker cells that extend from the bundle of his
  7. 12. pacemaker cell pathway that conducts electrical flow from the SA node to AV node
  8. 15. a valve that doent close properly, blood flows backwards causing a swishing sound
  9. 16. disks the connections between cardiac muscle that allow communication between cells and mechanically hold them together
  10. 17. receives oxygen poor blood from the right atrium and pumps it out through the semilunar valve
  11. 18. the middle layer of the heart wall made of cardias muscle
  12. 20. the smallest diameter vessels
  13. 22. a graphical representation of the electrical currents generated by the action potentials in the heard
  14. 24. tract of pacemaker cells that come from the AV node down the ventricular septum and to the right and left ventricles
  15. 25. the maximum pressure during contraction of ventricles
Down
  1. 2. a stiff narrow valve that doesnt open completely blood will force through causing a whistling sound
  2. 3. the channel that initially lets in sodium into a autorythmic cell
  3. 4. the pressure difference between systolic and diastolic pressure
  4. 6. tendonous fibers that prevent the AV valves from prolapsing from the pressure in the ventricle
  5. 8. large diameter vessles formed by the merging of venules
  6. 13. large blood vessels that carry blood away from the heart to the system
  7. 14. the cells that cause the autorhythmicity in the heart
  8. 19. the minimum blood pressure right after contraction
  9. 21. branching from the arteries smaller in diameter
  10. 22. the volume of blood in the chamber at the end of diastole the max blood volume
  11. 23. abnormal heart sounds due to turbulent flow because of malfunctioning valves