internal jugular vein
anatomy
Quick Summary
The internal jugular vein is a major vein in the neck that, along with the external jugular vein, drains blood from the brain, face, and neck back to the heart via the superior vena cava. The internal jugular veins merge with the subclavian veins to form the brachiocephalic veins, playing a crucial role in returning deoxygenated blood from the head and neck to the circulatory system.1
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