atrioventricular node

An area of conducting tissue between the atria and the ventricles of the heart that conducts the normal electrical impulse from the atria to the ventricles. Every claim on this page comes from the Leumas anatomy graph and carries its source.

What the atrioventricular node is

An area of conducting tissue between the atria and the ventricles of the heart that conducts the normal electrical impulse from the atria to the ventricles. The atlas records it as a tissue at the tissue scale in the human body.

Where the atrioventricular node is

It sits in the thorax and trunk, within the muscular and cardiovascular systems. Positioned deliberately as part of this species body plan.

What the atrioventricular node connects to

The atlas records 9 typed relationships for it, across 5 kinds of connection. part of conducting system of heart and interatrial septum.

Supply and innervation

Arterial supply: atrioventricular nodal artery.

Also called

Also recorded as AV nodal muscle tissue, AV node, Aschoff-Tawara node, atrioventricular nodal muscle tissue, node of Tawara and nodus atrioventricularis, and 4 more. Searching any of those names reaches this page.

Source

Uberon multi-species anatomy ontology (Mungall et al.), CC BY 4.0. Term UBERON:0002352, version 2026-06-19, retrieved 2026-08-24. Licence: CC-BY-4.0.

• Part of: conducting system of heart and interatrial septum.
• A kind of: cardiac muscle tissue of interatrial septum, cardiac muscle tissue of myocardium and conducting tissue of heart.
• Connected to: crista terminalis and interatrial septum.
• contributes to morphology of: conducting system of heart.
• Supplied by: atrioventricular nodal artery.

Questions

Where is the atrioventricular node?

It sits in the thorax and trunk, within the muscular and cardiovascular systems. Positioned deliberately as part of this species body plan.

What does the atrioventricular node connect to?

Part of: conducting system of heart and interatrial septum.

Is the atrioventricular node the same in other species?

Leumas holds the same relationship vocabulary for every species it carries, so where another dataset records this structure you can put the two side by side on /compare.