SodiuminfluxSA node →AV node →Bundle of His→ PurkinjefibersSodium(Na⁺)SpecializedpacemakercellsAVnodePumpblood Voltageremainssteady TheatriacontractAbatteryPotassiumleavesslightly70–100 Tells cellswhen tocontractand relax ActionpotentialsSignalsfrom theconductionsystemGenerateelectricalimpulsesSodium-potassiumpumpsNoPotassiumleavesRightatriumNaturalPacemakerCalciuminfluxEnginesA burstofelectricityCa²⁺in, K⁺outSodiuminfluxSA node →AV node →Bundle of His→ PurkinjefibersSodium(Na⁺)SpecializedpacemakercellsAVnodePumpblood Voltageremainssteady TheatriacontractAbatteryPotassiumleavesslightly70–100 Tells cellswhen tocontractand relax ActionpotentialsSignalsfrom theconductionsystemGenerateelectricalimpulsesSodium-potassiumpumpsNoPotassiumleavesRightatriumNaturalPacemakerCalciuminfluxEnginesA burstofelectricityCa²⁺in, K⁺out

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