A burstofelectricityCalciuminfluxSignalsfrom theconductionsystemNaturalPacemakerSA node →AV node →Bundle of His→ PurkinjefibersAVnodeCa²⁺in, K⁺outSodium(Na⁺)PotassiumleavesslightlyPotassiumleavesSodium-potassiumpumpsSodiuminflux70–100 EnginesGenerateelectricalimpulsesAbatteryActionpotentialsNoTells cellswhen tocontractand relax Pumpblood Voltageremainssteady SpecializedpacemakercellsRightatriumTheatriacontractA burstofelectricityCalciuminfluxSignalsfrom theconductionsystemNaturalPacemakerSA node →AV node →Bundle of His→ PurkinjefibersAVnodeCa²⁺in, K⁺outSodium(Na⁺)PotassiumleavesslightlyPotassiumleavesSodium-potassiumpumpsSodiuminflux70–100 EnginesGenerateelectricalimpulsesAbatteryActionpotentialsNoTells cellswhen tocontractand relax Pumpblood Voltageremainssteady SpecializedpacemakercellsRightatriumTheatriacontract

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