The left brachiocephalic vein is about 6cm, more than twice the length of the right brachiocephalic vein.[3] and is formed by the confluence of the left subclavian and left internal jugular veins. In addition the left vein receives drainage from the following tributaries:
The right brachiocephalic vein is about 2.5cm long.[3] The right vein is formed by the confluence of the right subclavian vein and the right internal jugular vein. It receives the following tributaries:
The right vertebral vein, the internal thoracic vein, and the thyroid veins, and occasionally from the first right posterior intercostal veins.[3]
The left brachiocephalic vein develops from the anastomosis between the left and right anterior cardinal veins when the caudal segment of the left anterior cardinal vein degenerates.[citation needed]
^Moore, Keith L. (2018). Clinically oriented anatomy (Eighth ed.). Philadelphia. p. 1004. ISBN9781496347213.{{cite book}}: CS1 maint: location missing publisher (link)
^Sinnatamby, Chummy S. (2011). Last's Anatomy (12th ed.). Elsevier Australia. p. 193. ISBN978-0-7295-3752-0.
^ abcdefgStandring, Susan (2016). Gray's anatomy : the anatomical basis of clinical practice (Forty-first ed.). [Philadelphia]. p. 1027. ISBN978-0-7020-5230-9.{{cite book}}: CS1 maint: location missing publisher (link)
^Standring, Susan (2016). Gray's anatomy : the anatomical basis of clinical practice (Forty-first ed.). [Philadelphia]. p. 983. ISBN978-0-7020-5230-9.{{cite book}}: CS1 maint: location missing publisher (link)
