![Vegetative neurology; the anatomy, physiology, pharmaco-dynamics and pathology of the sympathetic and autonomic nervous systems . 7 The communicating tracts there are divided in their course intoa white and gray branch, Vegetative neurology; the anatomy, physiology, pharmaco-dynamics and pathology of the sympathetic and autonomic nervous systems . 7 The communicating tracts there are divided in their course intoa white and gray branch,](https://c8.alamy.com/comp/2CE09R0/vegetative-neurology-the-anatomy-physiology-pharmaco-dynamics-and-pathology-of-the-sympathetic-and-autonomic-nervous-systems-7-the-communicating-tracts-there-are-divided-in-their-course-intoa-white-and-gray-branch-or-more-generally-speaking-into-a-pre-andpost-ganglionic-part-as-a-rule-the-white-rami-go-from-the-spinalcord-to-the-sympathetic-cord-and-the-gray-rami-go-from-the-sym-pathetic-cord-to-the-viscera-or-via-the-spinal-nerves-of-the-end-organsat-the-periphery-in-a-cross-section-of-a-metamere-the-following-is-found-1-the-spinal-anterior-horn-with-its-motor-root-for-the-in-2CE09R0.jpg)
Vegetative neurology; the anatomy, physiology, pharmaco-dynamics and pathology of the sympathetic and autonomic nervous systems . 7 The communicating tracts there are divided in their course intoa white and gray branch,
![The Neuromodulation Appropriateness Consensus Committee on Best Practices for Dorsal Root Ganglion Stimulation - Deer - 2019 - Neuromodulation: Technology at the Neural Interface - Wiley Online Library The Neuromodulation Appropriateness Consensus Committee on Best Practices for Dorsal Root Ganglion Stimulation - Deer - 2019 - Neuromodulation: Technology at the Neural Interface - Wiley Online Library](https://onlinelibrary.wiley.com/cms/asset/fdd64858-62e5-428d-9823-4b7fa1a0d937/ner12845-fig-0003-m.jpg)
The Neuromodulation Appropriateness Consensus Committee on Best Practices for Dorsal Root Ganglion Stimulation - Deer - 2019 - Neuromodulation: Technology at the Neural Interface - Wiley Online Library
![Claudia Krebs on Twitter: "Hello #anatomy twitterers! Why do preganglionic sympathetic fibres go through the white ramus communicans, which is distal, and then loop back through the grey ramus onto the spinal Claudia Krebs on Twitter: "Hello #anatomy twitterers! Why do preganglionic sympathetic fibres go through the white ramus communicans, which is distal, and then loop back through the grey ramus onto the spinal](https://pbs.twimg.com/media/EEOn3mFVAAAFmFu.jpg)