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ansa subclavia

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noun ansa sub·cla·via \ˈan-sə-ˌsəb-ˈklā-vē-ə\

Medical Definition of ansa subclavia

  1. :  a nerve loop that connects the middle and inferior cervical ganglia and passes around the subclavian artery The ansa subclavia (sympathetic nerves) curl around the [subclavian] artery to lie both anterior and posterior to it.—Robert H. Whitaker and Neil R. Borley, Instant Anatomy, 4th edition, 2010

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