RT Book, Section A1 Michael, Stanton-Hicks A2 Diwan, Sudhir A2 Staats, Peter S. SR Print(0) ID 1109189937 T1 Thoracic (T2-3) Ganglion Block T2 Atlas of Pain Medicine Procedures YR 2015 FD 2015 PB McGraw-Hill Education PP New York, NY SN 9780071738767 LK accessanesthesiology.mhmedical.com/content.aspx?aid=1109189937 RD 2024/04/19 AB The functional separation of the vagi (vagal nerves) and sympathetic trunks can be attributed to Estienne (1544),1 but it was Winslow who, in 1732,2 described the sympathetic trunk as the paravertebral chain. Many anatomists, including Michener and Auerbach, explored the sympathetic fibers and trunk. But as a functional component of the autonomic nervous system, the association had to wait until Langley and Dickerson in 1899.3