Revision 2 for 'Extensor digitorum brevis muscle'

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Extensor digitorum brevis muscle

The extensor digitorum brevis muscle is a muscle on the dorsal surface of the foot which helps extend digits 2 through 4.


  • origin: superolateral surface of calcaneus
  • insertion: lateral sides of the tendons of extensor digitorum longus of toes II to IV
  • action: extension of toes II to IV
  • arterial supply: dorsalis pedis artery
  • innervation: deep peroneal nerve

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