superior vena cava is the major vein that drains into the brachiocephalic veins.
superior vena cava is the major vein that drains into the brachiocephalic veins.
major veins that drain into the brachiocephalic veins?
superior vena cava
the brachiocephalic vein is formed by the confluence of the subclavian and internal jugular veins. in addition it receives drainage from:









































bullet::::- left and right internal thoracic vein (also called internal mammary veins): drain into the inferior border of their corresponding vein









































bullet::::- left and right inferior thyroid veins: drain into the superior aspect of their corresponding veins near the confluence









































bullet::::- left superior intercostal vein: drains into the left brachiocephalic vein









































section::::embryological origin.
brachiocephalic vein
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.









































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.









































section::::tributaries.
brachiocephalic vein