Myotomes and Dermatomes of the Lower Limb

Nerves of lower limb | Main Anatomy Index

Myotomes of the Lower Limb

Hip Joint

• Flexion: L2-3 (also adduction and medial rotation)
• Extension: L4-5 (also abduction and lateral rotation)

Knee Joint

• Extension: L3-4
• Flexion: L5-S1

Ankle Joint and Foot

• Dorsiflexion: L4-5
• Plantarflexion: S1-2

• Inversion: L4
• Eversion: L5-S1

For the innervation of the individual muscles, go to the relevant section in the page nerves of the lower limb.

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Dermatomes of the Lower Limb

• Around inguinal region: L1
• Front of knee: L3
• Over tibia: L4
• Over fibula: L5
• Medial side of foot: L5
• Lateral side of foot: S1

"One walks on S1, sits on S3 (around the anus) S2 narrow strip up the middle of the calf and hamstrings."

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Skin supplied by Cutaneous Nerves of the Lower Limb

Click here for the diagram illustrating the cutaneous innervation of the lower limb from the anterior aspect.

Click here for the diagram illustrating the cutaneous innervation of the lower limb from the posterior aspect.

For information and details of the individual nerves, click here to go to the nerves of the lower limb page.

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