Anatomy
·Lower Limb
Sciatic Nerve & Its Branches
⭐ PREMIUM
The sciatic nerve (L4–S3) is the largest nerve in the body — really two nerves (tibial + common fibular) in one sheath.
COURSE
• Exits the greater sciatic foramen BELOW piriformis → descends in the posterior thigh deep to the hamstrings → divides into tibial + common fibular nerves (usually at the apex of the popliteal fossa).
TIBIAL NERVE (L4–S3)
• Posterior leg (plantarflexors) + sole of f…
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