Categories: Flash Card
Cardiac Conduction – Arrhythmias – Cardiovascular System
SA node?
No t tubule
Sinus arrhythmia is produced by?
SA node
Slow depolarizing pre potentials are characteristic of?
SA node
SA node is pacemaker because its excitability is?
Highest of all
SA node acts as pacemaker because?
![](data:image/svg+xml;charset=utf-8,<svg height="500px" width="826px" xmlns="http://www.w3.org/2000/svg" version="1.1"/>)
Blood supply to SA node?
Right posterior interventricular artery
Initial depolarization is due to?
Rapid Na+ influx
Plateau phase is due to?
Slow Na+ influx
Repolarization is due to?
K+ efflux
Refractory period is NOT affected by?
Sympathetic stimulation
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