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Lumbar plexus

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:

Anatomy: Abdominopelvic

Anatomy: Abdominopelvic

Anatomy: Lower limb

Anatomy: Lower limb

Article information

rID: 38195
Section: Anatomy
Synonyms or Alternate Spellings:
  • Lumbal plexus

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Cases and figures

  • Figure 1: lumbar plexus labeled
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