Flexor Digitorum Brevis

Joe Muscolino

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The flexor digitorum brevis of the foot on the right side of the body.

The Flexor Digitorum Brevis is an intrinsic muscle of the foot located in Plantar Layer I. The muscles located in Plantar Layer I are:



  • Calcaneus to toes #2-5.
    • The proximal attachment is onto the tuberosity of the calcaneus.
    • The distal attachments are onto the medial and lateral sides of the middle phalanges.



  • Flexes toes #2-5 at the metatarsophalangeal and proximal interphalangeal joints.



  1. The flexor digitorum brevis also has attachments into the plantar fascia of the foot.
  2. The distal tendons of the flexor digitorum brevis split to allow passage of the distal tendons of the flexor digitorum longus.