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Kaiser Permamente ECG quiz Study Guide.
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Kaiser Permamente ECG quiz Study Guide. Depolarization - answerThe movement of ions (Na+ K+ Ca+) across cell membrane causing inside of the cell to become more positive; an electrical event which results in a contraction. Sodium channels open up and sodium pours in • The charges reverse • P...

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  • November 11, 2024
  • 3
  • 2024/2025
  • Exam (elaborations)
  • Questions & answers

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  • kaiser permamente ecg quiz study guide

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  • ECG
  • ECG

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©THEBRIGHT EXAM SOLUTIONS

11/8/2024 12:08 PM


Kaiser Permamente ECG quiz Study Guide.


Depolarization - answer✔The movement of ions (Na+ K+ Ca+) across cell membrane causing inside of
the cell to become more positive; an electrical event which results in a contraction.



Sodium channels open up and sodium pours in

• The charges reverse • Positive inside• Negative outside

Repolarization - answer✔The movement of ions across cell membrane in which the inside of the cell is
restored to its negative charge.



Sodium channels

close. Potassium

channels open. •Potassium pours out

allows for a quick return of resting state

•Sodium is kicked out of the cell

•Active transport Sodium-potassium pump

Automaticity - answer✔-ability of pacemaker cells to spontaneously initiate an electrical

impulse, SA Node, AV junction and Purkinje fibers.

Excitability - answer✔-ability of muscle cells to respond to outside stimulus

Conductivity - answer✔-ability to receive an electrical stimulus and conduct that impulse to

adjacent cells - all cardiac cells possess this.

Contraction - answer✔cardiac cells shorten, causing muscular contraction in response to an electrical
stimulus.

SA node - answer✔Fastest rate of automaticity. "Primary" pacemaker of the heart. Rate: 60 to 100 beat
per minute.

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