lumbosacral trunk

noun

Medical Definition of lumbosacral trunk

: a nerve trunk that is formed by the fifth lumbar nerve and a smaller branch of the fourth lumbar nerve and that connects the lumbar plexus to the sacral plexus

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“Lumbosacral trunk.” Merriam-Webster.com Medical Dictionary, Merriam-Webster, https://www.merriam-webster.com/medical/lumbosacral%20trunk. Accessed 20 Oct. 2020.

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