internal mammary vein

noun
variants: or internal thoracic vein

Medical Definition of internal mammary vein

: a vein of the trunk on each side of the body that accompanies the corresponding internal mammary artery and empties into the brachiocephalic vein

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Cite this Entry

“Internal mammary vein.” Merriam-Webster.com Medical Dictionary, Merriam-Webster, https://www.merriam-webster.com/medical/internal%20mammary%20vein. Accessed 13 Aug. 2020.

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