True about brachiocephalic vein is all except: (A) Formed behind sternoclavicular joint, (B) Left vein is longer, (C) Right runs veical, (D) Right vein unite at 1st costal cailage
Answer is D. Right brachiocephalic vein joins left brachiocephalic vein at 1st costal cailage to form superior vena cava. this is present in the superior mediastinum Ref: Gray's 38e/p1026