ulnar vein

noun

Medical Definition of ulnar vein

: any of several deep veins of the forearm that accompany the ulnar artery and unite at the elbow with the radial veins to form the brachial veins

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“Ulnar vein.” Merriam-Webster.com Medical Dictionary, Merriam-Webster, https://www.merriam-webster.com/medical/ulnar%20vein. Accessed 2 Dec. 2020.

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