The lumbar plexus is fashioned lateral towards the intervertebral foramina via the ventral rami of the initial four lumbar spinal nerves (L1-L4), which all go through psoas main. The much larger branches of the plexus exit the muscle to pass sharply downward to reach the abdominal wall as well as https://www.sgvascularctr.com/swelling-leg-treatment-singapore/