TheatriacontractSodium(Na⁺)70–100 AVnodeSA node →AV node →Bundle of His→ PurkinjefibersSignalsfrom theconductionsystemPumpblood PotassiumleavesslightlySodium-potassiumpumpsCalciuminfluxPotassiumleavesCa²⁺in, K⁺outA burstofelectricitySodiuminfluxNaturalPacemakerVoltageremainssteady EnginesNoRightatriumAbatteryGenerateelectricalimpulsesActionpotentialsSpecializedpacemakercellsTells cellswhen tocontractand relax TheatriacontractSodium(Na⁺)70–100 AVnodeSA node →AV node →Bundle of His→ PurkinjefibersSignalsfrom theconductionsystemPumpblood PotassiumleavesslightlySodium-potassiumpumpsCalciuminfluxPotassiumleavesCa²⁺in, K⁺outA burstofelectricitySodiuminfluxNaturalPacemakerVoltageremainssteady EnginesNoRightatriumAbatteryGenerateelectricalimpulsesActionpotentialsSpecializedpacemakercellsTells cellswhen tocontractand relax 

SA Node and Myocardial Cell Action Potential - Call List

(Print) Use this randomly generated list as your call list when playing the game. There is no need to say the BINGO column name. Place some kind of mark (like an X, a checkmark, a dot, tally mark, etc) on each cell as you announce it, to keep track. You can also cut out each item, place them in a bag and pull words from the bag.


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  1. The atria contract
  2. Sodium (Na⁺)
  3. 70–100
  4. AV node
  5. SA node → AV node → Bundle of His → Purkinje fibers
  6. Signals from the conduction system
  7. Pump blood
  8. Potassium leaves slightly
  9. Sodium-potassium pumps
  10. Calcium influx
  11. Potassium leaves
  12. Ca²⁺ in, K⁺ out
  13. A burst of electricity
  14. Sodium influx
  15. Natural Pacemaker
  16. Voltage remains steady
  17. Engines
  18. No
  19. Right atrium
  20. A battery
  21. Generate electrical impulses
  22. Action potentials
  23. Specialized pacemaker cells
  24. Tells cells when to contract and relax