The lumbar plexus is shaped lateral to your intervertebral foramina with the ventral rami of the very first 4 lumbar spinal nerves (L1-L4), which all pass through psoas key. The bigger branches of your plexus exit the muscle mass to pass sharply downward to get to the abdominal wall and https://www.sgvascularctr.com/swelling-leg-treatment-singapore/