As of the latest update, Google Chrome and Microsoft Edge have made a breaking change to how file uploads are handled. Once your system installs this update, you will not be able to upload new images. Please use another browser until we can get it fixed.

Plantar interossei (foot)

Bill Yan and Dr Geon Oh et al.

The three plantar interossei muscles adduct the third, fourth and little toes toward the long axis through the second toe.


  • origin: medial sides of metatarsals of toes III to V
  • insertion: extensor hoods and bases of proximal phalanges of toes III to V
  • action: abduction of toes III to V at metatarsophalangeal joints; resist extension of the metatarsophalangeal joints and flexion of the interphalangeal joints
  • innervation: lateral plantar nerve from tibial nerve

Anatomy: Lower limb

Anatomy: Lower limb

Share article

Article information

rID: 44464
Section: Anatomy
Synonyms or Alternate Spellings:

Support Radiopaedia and see fewer ads

Updating… Please wait.

 Unable to process the form. Check for errors and try again.

 Thank you for updating your details.