Where the right atrium is, in 3D

The right atrium is the chamber that first receives blood returning from the body. It is part of the heart and belongs to the cardiovascular system. It forms the right upper part of the heart and receives the superior and inferior venae cavae and the coronary sinus, which drains the heart's own veins. The sinoatrial node, which starts each heartbeat, lies in its wall.

Frequently asked questions

Which body system does the right atrium belong to?

The right atrium belongs to the cardiovascular system. The cardiovascular system is made up of the heart and the blood vessels: arteries, veins and capillaries.

What else can you see alongside the right atrium?

The BAHI BODY 3D model of the heart also shows the right ventricle, left atrium, left ventricle, tricuspid valve, pulmonary valve, mitral valve, aortic valve, aorta, pulmonary trunk, superior vena cava, inferior vena cava, brachiocephalic trunk, brachiocephalic veins, common carotid arteries and subclavian arteries.

Where is the heart?

The heart is a muscular organ in the middle of the chest, slightly to the left, between the lungs.

Where is the sinoatrial node?

In the wall of the right atrium, near where the superior vena cava enters.

Other parts of the heart

Wider view

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Related reading

Once the 3D model loads you can turn it and select each part.