NoRightatrium70–100 Tells cellswhen tocontractand relax Sodium(Na⁺)Signalsfrom theconductionsystemEnginesCa²⁺in, K⁺outVoltageremainssteady PotassiumleavesTheatriacontractSodium-potassiumpumpsPotassiumleavesslightlyPumpblood SA node →AV node →Bundle of His→ PurkinjefibersActionpotentialsSodiuminfluxSpecializedpacemakercellsGenerateelectricalimpulsesA burstofelectricityNaturalPacemakerAVnodeAbatteryCalciuminfluxNoRightatrium70–100 Tells cellswhen tocontractand relax Sodium(Na⁺)Signalsfrom theconductionsystemEnginesCa²⁺in, K⁺outVoltageremainssteady PotassiumleavesTheatriacontractSodium-potassiumpumpsPotassiumleavesslightlyPumpblood SA node →AV node →Bundle of His→ PurkinjefibersActionpotentialsSodiuminfluxSpecializedpacemakercellsGenerateelectricalimpulsesA burstofelectricityNaturalPacemakerAVnodeAbatteryCalciuminflux

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