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cardiac-conduction-system
Cardiac conduction system
Specialized tissue routing the cardiac impulse: SA node → AV node → Bundle of His → bundle branches → Purkinje fibers. The AV delay (~120 ms PR interval) ensures atrial kick before ventricular systole; Purkinje network synchronizes ventricular activation for efficient ejection.
Entry Metadata
| Field | Value |
|---|---|
| ID | cardiac-conduction-system |
| Name | Cardiac conduction system |
| Status | draft |
| Last reviewed | 2026-06-03 |
| Atlas | 01-human |
| Scale | 05-tissue |
Cross-Atlas Connections
Sources
- Dobrzynski H, Boyett MR, Anderson RH. New insights into pacemaker activity: promoting understanding of sick sinus syndrome. Circulation. 2007;115(14):1921-32. · PubMed 17420362
- OpenStax. Anatomy & Physiology 2e, Ch. 19.2: Cardiac Muscle and Electrical Activity.
- Bers DM. Cardiac excitation-contraction coupling. Nature. 2002;415(6868):198-205. · PubMed 11805843