Left brachiocephalic vein

The left and right brachiocephalic veins (or innominate veins) in the upper chest are formed by the union of each corresponding internal jugular vein and subclavian vein. This is at the level of the sternoclavicular joint. The left brachiocephalic vein is usually longer than the right.Diagram showing completion of development of the parietal veins.Front view of heart and lungs.The fascia and middle thyroid veins.Right Brachiocephalic veinRight& Left Brachiocephalic veinRight& Left Brachiocephalic veinThe brachiocephalic veins, superior vena cava, inferior vena cava, azygos vein and their tributaries. The left and right brachiocephalic veins (or innominate veins) in the upper chest are formed by the union of each corresponding internal jugular vein and subclavian vein. This is at the level of the sternoclavicular joint. The left brachiocephalic vein is usually longer than the right. These veins merge to form the superior vena cava, a great vessel, posterior to the junction of the first costal cartilage with the manubrium sternum. The brachiocephalic veins are the major veins returning blood to the superior vena cava.