The anterior divisions communicate with the sympathetic trunk . Near the origin of the divisions, they are joined by gray rami communicantes from the lumbar ganglia of the sympathetic trunk. These rami consist of long, slender branches which accompany the lumbar arteries around the sides of the vertebral bodies, beneath the Psoas major . Their arrangement is somewhat irregular: one ganglion may give rami to two lumbar nerves, or one lumbar nerve may receive rami (branches) from two ganglia . The first and second, and sometimes the third and fourth lumbar nerves are each connected with the lumbar part of the sympathetic trunk by a white ramus communicans .
I have been suffering from glut. med. pain for over 30 years and one time I was diagnosed by ultrasound imaging of having glut. med. tendinopathy. Running has been difficult. I read this article in 2013 with interest, and it was of great help. Including massage by a professional therapist twice monthly with emphasis on the hips and exercises as described in this link http:///gluteus- I now do 100 km per month without much hip problems. In fact, nowadays I experience other issues, such as beginning compartment syndrome etc. The amount of suffering seems constant! :=)
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