| Gray ramus communicans | |
|---|---|
| Details | |
| Identifiers | |
| Latin | r. communicans griseus |
| TA98 | A14.3.01.006 |
| TA2 | 6149 |
| FMA | 5876 |
| Anatomical terminology | |
Each spinal nerve receives a branch called a gray ramus communicans (pl.: rami communicantes) from the adjacent paravertebral ganglion of the sympathetic trunk. The gray rami communicantes contain postganglionic nerve fibers of the sympathetic nervous system and are composed of largely unmyelinated neurons. This is in contrast to the white rami communicantes, in which heavily myelinated neurons give the rami their white appearance.[1]