• Quadratus plantae (missing from atlas)
  • Lumbricals

MuscleActionOriginInsertionInnervationBlood supply
Quadratus plantae- Assists 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: S1-3- Lateral plantar artery
Lumbricals- Flexion of metatarsophalangeal joint
- Extension of interphalangeal joints
- Tedons of flexor digitorum longus- Medial extensor hoods of toes 2-5- Medial plantar nerve from tibial nerve: S2,S3- Plantar metatarsal artery