Tibial Nerve

Description

• General
  • Is one of two terminal branches of the sciatic nerve.
  • It arises from the anterior divisions of the L4 to S3 nerve roots in the sacral plexus.
  • It supplies the leg and foot with motor and sensory supply.
• Course
  • It Passes down through the popliteal fossa running posterior to the popliteal vessels.
  • passes between the heads of gastrocnemius and the soleus muscle.
  • It then Emerges to pass under the flexor retinaculum in the tarsal tunnel.
  • On reaching the medial malleolus it divides into three terminal branches.

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Branches

• Muscular branches
• Medial sural cutaneous nerve
• Terminal branches
  • Medial plantar nerve
  • Lateral plantar nerve
  • Medial calcaneal nerve

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Functions

• Motor functions
  • muscular branches in the posterior compartment of the thigh and leg.
• Sensory functions
  • It provides cutaneous branches to posterior calf and sole of the foot.
  • Articular branches to knee, ankle and foot joints.

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See Also

• Leg Anatomy (Main)
• Deep Posterior Compartment of the Leg

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