Development of the Veins

Endocardial Heart Tube

Embryonic Circulation

Development of Veins

Development of Veins

Development of Veins

Development of Veins

Development of Veins

Development of Veins

Development of Veins

Development of Veins

Development of Inferior Vena Cava

Development of Inferior Vena Cava

Development of Inferior Vena Cava

Development of Inferior Vena Cava

Development of Inferior Vena Cava

Development of Inferior Vena Cava

Development of Azygos Veins

Development of Portal Vein

Development of Portal Vein

Development of Veins

Development of Veins

Development of Veins

Development of Veins

Abnormalities of Veins