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sympathetic trunk


Definition: one of the two long ganglionated nerve strands alongside the vertebral column that extend from the base of the skull to the coccyx; they are connected to each spinal nerve by gray rami and receive fibers from the spinal cord through white rami connecting with the thoracic and upper lumbar spinal nerves.

Synonym(s): truncus sympathicusTA, gangliated cord, ganglionic chain

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© Copyright 2018 Wolters Kluwer. All Rights Reserved. Review Date: Sep 19, 2016.