Lumbar plexus

Dr Craig Hacking et al.

The lumbar plexus is a complex neural network formed by the lower thoracic and lumbar ventral nerve roots (T12 to L5) which supplies motor and sensory innervation to the lower limb and pelvic girdle.

The branches that arise from the lumbar plexus are:

The branches of the lumber plexus are covered in this mnemonic.

Variation in the lumbar plexus appears to be common (~90% in one study) 1:

Abdominal and pelvic anatomy
Lower limb anatomy
Share article

Article Information

rID: 38195
Section: Anatomy
Tags: spine, anatomy
Synonyms or Alternate Spellings:
  • Lumbal plexus

Support Radiopaedia and see fewer ads

Cases and Figures

  • Drag
    Figure 1: lumbar plexus labelled
    Drag here to reorder.
  • Updating… Please wait.
    Loadinganimation

    Alert accept

    Error Unable to process the form. Check for errors and try again.

    Alert accept Thank you for updating your details.