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Medical Dictionary

ansa subclavia

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

medical Definition of ansa subclavia

: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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