Inferior vena cava entering right atrium — Free Anatomy Illustration | GPAI | GPAI

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Inferior vena cava entering right atrium — Free Anatomy Illustration | GPAI | GPAI

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Inferior vena cava entering right atrium

Inferior vena cava entering right atrium

Anatomy

Inferior vena cava entering right atrium

Large blue to bluish-purple inferior vena cava shown ascending vertically and entering the lower posterior portion of the right atrium from below. The vessel is broad, smooth, and cylindrical to slightly flattened, with a very wide lumen and thin compliant walls characteristic of a major vein. It appears as the dominant venous tube on the lower right side of the heart, larger than most surrounding veins, with a soft tubular contour and gentle superior taper.

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