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subclavian vein
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Silhouette diagram of the human body highlighting the heart and major blood vessels, with labeled arteries in red and veins in blue to show the structure of the cardiovascular system. Diagram of the human circulatory system showing major arteries in red and veins in blue, with labeled pathways for arterial supply and venous drainage to organs including the heart, lungs, liver, kidneys, intestines, and lower limbs.
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subclavian vein

anatomy
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Silhouette diagram of the human body highlighting the heart and major blood vessels, with labeled arteries in red and veins in blue to show the structure of the cardiovascular system.
human circulatory system Human circulatory system.

The subclavian vein is the proximal part of the main vein of the arm or forelimb. It is formed at the outer border of the first rib, where the axillary vein becomes the subclavian vein, marking the terminal point of the venous system for the upper extremity. The subclavian vein receives blood from various tributaries, including the external jugular vein, which drains parts of the head and neck. Ultimately, the subclavian veins, along with the internal jugular veins, converge to form the brachiocephalic veins, which then empty into the superior vena cava, returning blood to the heart.123

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3 Britannica Sources
  1. subclavian vein
  2. human cardiovascular system - Superior vena cava and its tributaries
  3. jugular vein

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