Subclavian vein

The subclavian vein (SCV) is the major venous channel that drains the upper limb.

Gross anatomy

Origin and course

The subclavian vein starts at the crossing of the lateral border of the 1st rib. It then arches cephalad, posterior to the medial clavicle before curving caudally and receiving its only tributary, the external jugular vein, which drains into the SCV at the lateral border of the anterior scalene muscle. The SCV then joins the internal jugular vein posterior to the sternoclavicular joint, where it forms the brachiocephalic vein. The thoracic duct and right lymphatic trunk drain into the central venous system at this point.

Relations
  • posterior: subclavian artery, anterior scalene muscle, 1st rib, pleura
  • anterior: clavicle
Thoracic anatomy
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Article Information

rID: 35014
Systems: Chest, Vascular
Section: Anatomy
Tag: refs
Synonyms or Alternate Spellings:
  • Subclavian veins

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