NERVE LIBRARY · Lower limb

Tibial nerve

Calf involvement helps distinguish a proximal tibial lesion from distal tarsal tunnel disease.

Roots / nucleus: L4–S3
Function: Mixed
3D protocols: 3 related protocols

01Course and sensory territory

Plantar foot and heel, supplied through distinct branches.

02Motor supply

Gastrocnemius, soleus, tibialis posterior, toe flexors and plantar muscles.

03Localization clues

Calf involvement helps distinguish a proximal tibial lesion from distal tarsal tunnel disease.

04Combine the studies

Record AH motor and appropriate plantar sensory/mixed responses, comparing proximal tibial and non-tibial S1 muscles.

Explore the related 3D protocols

Tibial motorG1 / G2 / Stimulation ↗Medial plantar mixedG1 / G2 / Stimulation ↗Lateral plantar mixedG1 / G2 / Stimulation ↗

These retain the existing source-supported landmarks and references. The 3D model is educational; clinical work requires palpation and measured distances.

Connect to a clinical question

Conduction block and temporal dispersion F waves and H reflexes EDX during an acute GBS course

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References and further reading

Distal Lower Extremity Mononeuropathies ↗AAPM&R KnowledgeNow · Society educational review · Link accessed 2026-09-08
Upper and Lower Extremity Nerve Conduction Studies (2023) ↗AANEM · Technical course · Link accessed 2026-09-08

Educational synthesis; independent neuromuscular specialist review is pending. Publication dates and compilation dates are distinct. This is an original teaching synthesis; consult the source for complete methods and criteria.