Left Brachiocephalic
Brachiocephalic veins are also known as innominate veins. This vein is formed in the upper chest. Like right brachiocephalic vein, left brachiocephalic vein is formed by the fusion of left subclavian and left internal jugular veins.
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Left Brachiocephalic
This vein is comparatively longer as compared to the right brachiocephalic vein. Right vein is 2.5 cm in length. On the other hand, left brachiocephalic vein is 6 cm in length. Right and left brachiocephalic veins fuse behind the the lower border of first costal cartilage to form an even bigger vein called the superior vena cava. The basic function of this vein is to drain deoxygenated blood from the upper extremities of the body i.e. head, neck and some parts of trunk. The deoxygenated blood from both brachiocephalic veins drain into the superior vena cava, which then takes this blood into the right atria. Following are the major veins draining into the left brachiocephalic vein: Vertebral veins. Internal thoracic vein. Inferior thyroid vein. First posterior intercostal vein. Left superior intercostal veins. Thymic veins. Pericardial veins. Superior thyroid (via internal jugular). Middle thyroid (via internal jugular).
DIMENSIONS
FORMATION OF SUPERIOR VENA CAVA
FUNCTION
TRIBUTARIES
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