atrioventricular node
Sign in to saveAlso known as AV node, A-V node, Tawara node
part of the electrical conduction system of the heart that coordinates the top of the heart.
Key facts
- System
- Electrical conduction system of the heart
- Artery
- Atrioventricular nodal branch
- Latin
- nodus atrioventricularis
- Acronym
- AV node
- Mesh
- D001283
- Ta98
- A12.1.06.004
via Wikipedia infobox
Research
10,743 papers- Atrioventricular node ablation for atrial fibrillation in the era of conduction system pacing.European heart journal · 2024
- HCN4 in the atrioventricular node.Heart rhythm · 2025
- The ongoing mystery of the atrioventricular node.Pacing and clinical electrophysiology : PACE · 2019
- Connexins and the atrioventricular node.Heart rhythm · 2013
- The atrioventricular node: origin, development, and genetic program.Trends in cardiovascular medicine · 2010
via PubMed
Wikidata facts
- Image
- Reizleitungssystem 1.png
Show 1 more fact
- Commons category
- Atrioventricular node
Sources (3)
via Wikidata · CC0
~5 min read
Article
The atrioventricular node (AV node, or Aschoff-Tawara node) is part of the electrical conduction system of the heart. It electrically connects the atria to the ventricles to coordinate beating. The AV node lies at the lower back section of the interatrial septum near the opening of the coronary sinus and conducts the normal electrical impulse generated by the sinoatrial node to the ventricles. It slightly delays the electrical impulse by about 0.09s. The AV node also fires intrinsically (without external stimulation) at a rate of 40–60 times/minute, slower than the sinoatrial node. It is quite compact (~1 x 3 x 5 mm).
Structure