NaturalPacemakerSodiuminfluxPotassiumleavesPotassiumleavesslightlyCa²⁺in, K⁺outCalciuminfluxGenerateelectricalimpulsesNoVoltageremainssteady 70–100 ActionpotentialsRightatriumSignalsfrom theconductionsystemSodium-potassiumpumpsPumpblood Tells cellswhen tocontractand relax AbatteryTheatriacontractA burstofelectricityAVnodeEnginesSodium(Na⁺)SpecializedpacemakercellsSA node →AV node →Bundle of His→ PurkinjefibersNaturalPacemakerSodiuminfluxPotassiumleavesPotassiumleavesslightlyCa²⁺in, K⁺outCalciuminfluxGenerateelectricalimpulsesNoVoltageremainssteady 70–100 ActionpotentialsRightatriumSignalsfrom theconductionsystemSodium-potassiumpumpsPumpblood Tells cellswhen tocontractand relax AbatteryTheatriacontractA burstofelectricityAVnodeEnginesSodium(Na⁺)SpecializedpacemakercellsSA node →AV node →Bundle of His→ Purkinjefibers

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