SodiuminfluxSodium(Na⁺)GenerateelectricalimpulsesNoRightatriumA burstofelectricityEnginesTells cellswhen tocontractand relax NaturalPacemakerTheatriacontractSodium-potassiumpumpsPumpblood Specializedpacemakercells70–100 AVnodeSA node →AV node →Bundle of His→ PurkinjefibersPotassiumleavesslightlyAbatteryCalciuminfluxCa²⁺in, K⁺outActionpotentialsSignalsfrom theconductionsystemVoltageremainssteady PotassiumleavesSodiuminfluxSodium(Na⁺)GenerateelectricalimpulsesNoRightatriumA burstofelectricityEnginesTells cellswhen tocontractand relax NaturalPacemakerTheatriacontractSodium-potassiumpumpsPumpblood Specializedpacemakercells70–100 AVnodeSA node →AV node →Bundle of His→ PurkinjefibersPotassiumleavesslightlyAbatteryCalciuminfluxCa²⁺in, K⁺outActionpotentialsSignalsfrom theconductionsystemVoltageremainssteady Potassiumleaves

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