Subclavian vein
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| Vein: Subclavian vein | ||
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| The thyroid gland and its relations. (Right subclavian vein visible at bottom left, left subclavian vein visible at bottom right.) | ||
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| Diagram showing completion of development of the parietal veins. (Subclavian vein labeled at right, third from top.) | ||
| Latin | v. subclavia | |
| Gray's | subject #172 664 | |
| Drains from | axillary vein | |
| Drains to | brachiocephalic vein | |
| Artery | subclavian artery | |
| MeSH | A07.231.908.877 | |
In human anatomy, the subclavian veins are two large veins, one on either side of the body. Each subclavian vein is a continuation of the axillary vein and runs from the outer border of the first rib to the medial border of anterior scalene muscle. From here it joins with the internal jugular vein to form the brachiocephalic vein (also known as innominate vein). The term subclavian can be broken down to: sub= below, and clavian= pertaining to the clavicle.
The subclavian vein follows the subclavian artery and is separated posteriorly by the insertion of anterior scalene. Its diameter is approximately that of a man's small finger.
The thoracic duct drains into the left subclavian vein, near its junction with the left internal jugular vein. It carries lymph (water and solutes) from the lymphatic system, as well as chylomicrons or chyle, formed in the intestines from dietery fat and lipids.
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