Cardiac conduction system
Topic: Anatomy & physiology
Specialized cardiac muscle cells that start and coordinate each heartbeat: the sinoatrial (SA) node, atrioventricular (AV) node, bundle of His, right and left bundle branches and Purkinje fibers. The SA node, the natural pacemaker, fires 60–100 times a minute. If it fails, the AV node (40–60/min) and the ventricles (20–40/min) take over with slower escape rhythms. This pathway underlies the ECG waveform.
- Also known as:
- Conduction system, Sinoatrial node, SA node
- In Turkish:
- Kalbin ileti sistemi
What does Cardiac conduction system mean?
Cardiac conduction system is part of the Anatomy & physiology topic in nursing. Students meet it in class, on clinical placements and while preparing for exams.
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