Structures

  • Flexor hallucis longus
  • Flexor digitorum longus
  • Flexor digitorum brevis
  • Flexor hallucis brevis
  • Flexor digiti minimi brevis
  • Quadratus plantae (not in atlas)
  • Lumbricals
  • Abductor hallucis
  • Dorsal interossei
  • Plantar interossei

MuscleActionOriginInsertionInnervationBlood supply
Flexor hallucis longus- Flexes great toe- Posterior surface of fibula and adjacent interosseous membrane- Plantar surface of distal phalanx of great toe- Tibial nerve: S2 ,S3- Peroneal artery
- Posterior tibial artery
Flexor digitorum longus- Flexes lateral four toes- Medial side of posterior surface of the tibia- Plantar surfaces of bases of distal phalanges of the lateral four toes- Tibial nerve: S2 ,S3- Posterior tibial artery
Flexor digitorum brevis- Flexes lateral four toes at proximal interphalangeal joint- Medial process calcaneal tuberosity
- Plantar aponeurosis
- Plantar sides of middle phalanges of lateral four toes- Medial plantar nerve from tibial nerve: S2, S3- Medial plantar artery
Flexor hallucis brevis- Flexes great toe at metatarsophalangeal joint - Plantar surface of cuboid and lateral cuneiform- Lateral and medial sides of base of proximal phalanx of the great toe- Lateral plantar nerve from tibial nerve: S1 ,S2- 1st plantar metatarsal artery
Flexor digiti minimi brevis- Flexes little toe at metatarsophalangeal joint- Base of 5th metatarsal - Lateral base of proximal phalanx of little toe- Lateral plantar nerve from tibial nerve: S2,S3- Lateral plantar artery
Quadratus plantaeAssists flexor digitorum longus tendon in flexing toes 2-5- Medial surface of calcaneus
- Lateral process of calcaneal tuberosity
- Lateral side of tendon of flexor digitorum longus in proximal sole of the foot- Lateral plantar nerve from tibial nerve [S1 to S3]- Lateral plantar artery
Lumbricals- Flexion of metatarsophalangeal joint
- Extension of interphalangeal joints
- Tedons of flexor digitorum longus- Medial extensor hoods of toes II to V- Medial plantar nerve from tibial nerve: S2,S3- Plantar metatarsal artery
Abductor hallucis- Abducts great toe at MTP joint
- Flexes great toe at MTP joint
(MTP = metatarsophalangeal)
- Medial process calcaneal tuberosity- Medial plantar portion of proximal phalanx of great toe- Medial plantar nerve from tibial nerve: S2, S3- Medial plantar artery
Dorsal interossei- Abduction of toes 2 to 4
- Flexion of interphalangeal joints
- Sides of adjacent metatarsals- Dorsal bases of proximal phalanges of toes 2-4- Lateral plantar nerve from tibial nerve : S2,3- Dorsalis metatarsal artery
Plantar interossei- Adduction of toes 3 to 5 at metatarsophalangeal joints
- Resist extension of the metatarsophalangeal joints
- Flexion of the interphalangeal joints
- Medial sides of metatarsals of toes 2-5- Dorsal bases of proximal phalanges of toes III to V- Lateral plantar nerve from tibial nerve : S2,3- Plantar metatarsal artery