1. What is the conduction pathway in the heart?
2. During which ionic movement does Phase 0 of the cardiac action potential primarily occur?
3. What is the primary role of refractory periods in cardiac electrophysiology?
Refractory periods â purpose?
Prevent premature contractions and re-entry arrhythmias.
Conduction pathway â sequence?
SA node â atria â AV node â Bundle of His â bundle branches â Purkinje fibers.
Cardiac action potential â phase 2?
Plateau phase due to CaÂČâș influx balancing Kâș efflux.
Conduction pathway order?
SA node, atria, AV node, bundle of His, bundle branches, Purkinje fibers, ventricles.
SA node â role?
Heart's natural pacemaker, initiates impulses.
Atrial conduction â function?
spreads electrical activity through atria.
It covers the core concepts of Cardiac Electrical Physiology and Arrhythmias, organized by topic with the key definitions, explanations and takeaways, so it's easier to learn and remember.
Read the full study guide âThe practice quiz has 10 multiple-choice questions, each with an explanation. Use it to check what you know and find your gaps.
Take the quiz (10 questions) âThere are 10 flashcards on Cardiac Electrical Physiology and Arrhythmias, with a question on the front and the answer on the back. Try to recall each answer before you flip, and let spaced repetition bring back the ones you miss.
See all 10 flashcards âUpload a PDF or paste your notes. Revizly writes a study guide, a practice quiz and flashcards in about a minute.