atrioventricular valve

A cardial valve in the atrioventricular region that separates the atrium from the ventricle and prevent backflow from the ventricles into the atria during systole. Every claim on this page comes from the Leumas anatomy graph and carries its source.

What the atrioventricular valve is

A cardial valve in the atrioventricular region that separates the atrium from the ventricle and prevent backflow from the ventricles into the atria during systole. The atlas records it as a organ at the organ scale in the human body.

Where the atrioventricular valve is

It sits in the thorax and trunk, within the cardiovascular system. Not positioned individually. Drawn inside the structure this dataset says contains it — the containment is asserted, the exact spot within it is not.

What the atrioventricular valve connects to

The atlas records 10 typed relationships for it, across 8 kinds of connection. part of atrioventricular region.

Supply and innervation

This dataset asserts no arterial supply, venous drainage or innervation for the atrioventricular valve. Only a minority of structures carry those edges here, so an empty answer means nothing has been recorded — not that there is nothing to record.

Also called

Also recorded as AV valve and atrio-ventricular valve. Searching any of those names reaches this page.

Source

Uberon multi-species anatomy ontology (Mungall et al.), CC BY 4.0. Term UBERON:0002133, version 2026-06-19, retrieved 2026-08-24. Licence: CC-BY-4.0.

• Part of: atrioventricular region.
• A kind of: cardiac valve.
• Attaches to: cardiac skeleton.
• connects: cardiac atrium and cardiac ventricle.
• subtype: mitral valve and tricuspid valve.
• contains: chorda tendineae.
• Develops from: endocardial cushion.
• contributes to morphology of: chorda tendineae.

Questions

Where is the atrioventricular valve?

It sits in the thorax and trunk, within the cardiovascular system. Not positioned individually. Drawn inside the structure this dataset says contains it — the containment is asserted, the exact spot within it is not.

What does the atrioventricular valve connect to?

Part of: atrioventricular region.

Is the atrioventricular valve 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.