right cardiac atrium

A cardiac atrium that is in the right side of the heart. It receives deoxygenated blood. In mammals, this comes from the superior and inferior vena cava and the coronary sinus, and pumps it into the right ventricle through the tricuspid valve. Every claim on this page comes from the Leumas anatomy graph and carries its source.

What the right cardiac atrium is

A cardiac atrium that is in the right side of the heart. It receives deoxygenated blood. In mammals, this comes from the superior and inferior vena cava and the coronary sinus, and pumps it into the right ventricle through the tricuspid valve. The atlas records it as a organ at the organ scale in the human body.

Where the right cardiac atrium is

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

What the right cardiac atrium connects to

The atlas records 26 typed relationships for it, across 10 kinds of connection. a kind of cardiac atrium and right cardiac chamber.

Supply and innervation

Venous drainage: inferior vena cava and anterior vena cava.

Also called

Also recorded as cardiac right atrium, heart right atrium, right atrium, right atrium of heart, right cardiac atrium and atrium dextrum. Searching any of those names reaches this page.

Source

Uberon multi-species anatomy ontology (Mungall et al.), CC BY 4.0. Term UBERON:0002078, version 2026-06-19, retrieved 2026-08-24. Licence: CC-BY-4.0.

• A kind of: cardiac atrium and right cardiac chamber.
• Connected to: blood vasculature, anterior vena cava, coronary sinus and inferior vena cava.
• Adjacent to: atrioventricular septum and interatrial septum.
• contains: cardiac muscle of right atrium, cavity of right atrium, crista terminalis, fossa ovalis of heart, outflow part of right atrium and right atrium auricular region, and 4 more.
• contributes to morphology of: crista terminalis and vena cava sinus.
• drains to: inferior vena cava and anterior vena cava.
• right of: heart.
• flows to: heart right ventricle.

Questions

Where is the right cardiac atrium?

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

What does the right cardiac atrium connect to?

A kind of: cardiac atrium and right cardiac chamber.

Is the right cardiac atrium 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.