Please confirm topic selection

Are you sure you want to trigger topic in your Anconeus AI algorithm?

Please confirm action

You are done for today with this topic.

Would you like to start learning session with this topic items scheduled for future?

Updated: Apr 9 2021

Tibial nerve

 
Innervation
  • Motor
    • topic gastrocnemius 
    • topic popliteus 
    • topic soleus 
    • topic tibialis posterior 
    • topic flexor digitorum longus 
    • topic flexor hallucis longus 
    • topic abductor hallucis 
    • topic flexor digitorum brevis 
    • topic flexor hallucis brevis 
    • topic foot lumbricals 
    • topic quadratus plantae 
    • topic flexor digiti minimi 
    • topic adductor hallucis 
    • topic foot interossei
    • topic abductor digiti minimi 
  • Sensory 
    • articular branch to knee joint
    • sural nerve branch
      • runs distal with the small saphenous vein
      • anastomoses with a branch from the peroneal nerve
      • continues distal on lateral aspect of the Achilles tendon
      • terminates as the lateral dorsal cutaneous nerve of the foot
  • Reflexes
    • none
Origin
  • L4-S3 roots
    • lumbosacral plexus
      • sciatic nerve 
        • tibial nerve
          • medial plantar nerve
          • lateral plantar nerve
Course of Tibial Nerve
  • Originates from the sciatic nerve
    • splits from sciatic nerve in distal thigh
    • passes through popliteal fossa
    • runs under arch of soleus
    • continues distally on undersurface of soleus
    • passes into foot posterior to the medial malleolus
Terminal Branches
  • Medial plantar nerve 
    • runs under the abductor hallucis and superficial to the flexor digitorum brevis
    • gives motor branches to:
      • topic abductor hallucis
      • topic flexor digitorum brevis
      • topic flexor hallucis brevis
      • topic 1st lumbrical
    • gives sensory branches to: 
      • plantar medial 3 1/2 digits
      • medial 3 1/2 dorsal nailbeds
  • Lateral plantar nerve  
    • runs between the flexor digitorum brevis and quadratus plantae
    • gives motor branches to:
      • topic quadratus plantae
      • topic flexor digiti minimi
      • topic adductor hallucis
      • topic interossei
      • topic three lateral lumbricals
      • topic abductor digiti minimi
    • gives sensory branches to:  
      • lateral plantar surface
      • lateral 1 1/2 toes
      • lateral 1 1/2 dorsal nailbeds
Nerve Injury & Clinical Conditions
  • Tibial Nerve Injury
    • can result from direct trauma or peripheral neuropathy (less common)
    • leads to:
      • loss of ankle and toe plantarflexion
      • weakened foot inversion
      • sensory loss to the plantar aspect of the foot
Private Note