![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)
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
Is white rami communications only for sympathetic, or also found in the parasympathetic system? - Quora
![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/EEOn3mhUEAIDcTR.jpg)
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
![Diagram of mSYMPX procedure. Red represents postganglionic sympathetic... | Download Scientific Diagram Diagram of mSYMPX procedure. Red represents postganglionic sympathetic... | Download Scientific Diagram](https://www.researchgate.net/profile/Sisi-Chen-6/publication/306269590/figure/fig1/AS:574402389188608@1513959609283/Diagram-of-mSYMPX-procedure-Red-represents-postganglionic-sympathetic-cells-in-the_Q640.jpg)
Diagram of mSYMPX procedure. Red represents postganglionic sympathetic... | Download Scientific Diagram
![Anatomical study and clinical significance of the rami communicantes between cervicothoracic ganglion and brachial plexus - Song - 2010 - Clinical Anatomy - Wiley Online Library Anatomical study and clinical significance of the rami communicantes between cervicothoracic ganglion and brachial plexus - Song - 2010 - Clinical Anatomy - Wiley Online Library](https://onlinelibrary.wiley.com/cms/asset/16dffa88-e9d8-4ecf-a20d-f1116b3b9ac5/mfig001.jpg)