1. Nerve Supply of the Lower Limb
The lumbo-sacral plexus

2. Learning Outcomes You should be able to…
Explain where the lumbar and sacral plexuses arise
Describe the distribution of all the nerves
Describe the course of the major nerves and identify where each is vulnerable to injury
Explain and use basic clinical terminology related to nerve damage
Use basic anatomical principles to predict the effects of damage to nerve roots and peripheral nerves

3. Plexi in Relation to the Spine & Pelvis Ref: Patten, Neurological Differential Diagnosis 1977

4. Nerves of the Lumbar Plexus
Ilioinguinal
Iliohypogastric
Genitofemoral
Lateral femoral cutaneous
Femoral
Obturator

5. Nerves of the Sacral Plexus
Superior gluteal
Inferior gluteal
Nerve to quadratus femoris
Nerve to obturator internus
Sciatic (tibial, common fibular)
Posterior femoral cutaneous
Pudendal

6. Dermatomes of the Lower Limb Ref: Moore & Dalley, Clinically Oriented Anatomy, 5th edn

7. Cutaneous Nerve Supply Ref: Moore, Clinically Oriented Anatomy 3rd Ed.

8. Cutaneous nerve supply of the lower limb
Ref: Moore & Dalley (2006) Clinically Oriented Anatomy (5th edition): Tables 5.1 & 5.15