| Term | Definition |
| Tibialis Anterior | Origin: Lateral condyle and body of tibia and interosseus membrane
Insertion: 1st Metatarsal and 1 cuneiform (medial)
Action: Dorsiflexion at ankle and inverts foot (towards midline) |
| Extensor Hallucis Longus | Origin: Anterior surface of fibula
Insertion: Distal phalanx of great toe
Action: Dorsiflexion and extension of proximal phalanx of hallux |
| Extensor Digitorum Longus | Origin: Tibia; anterior surface of fibula
Insertion: middle and distal phalanges of 2-5
Action: Dorsiflexion, extension of toes |
| Fibularis Tertius | Origin: Distal third of fibula
Insertion: Base of fifth metatarsal
Action: Dorsiflexion; eversion of foot |
| Fibularis Longus | Origin: Head and body of fibula
Insertion: 1st metatarsal and cuneiform
Action: Plantar flexes foot at ankle and everts foot |
| Fibularis Brevis | Origin: Body of fibula
Insertion: Base of fifth metatarsal
Action: Plantar flexes and everts foot at metatarsal joints |
| Gastrocnemius | Origin: Lateral and medial condyles of femur and knee
Insertion: Calcaneus
Action: Plantar flexion, leg flexion |
| Soleus | Origin: Head of fibula and medial border of tibia
Insertion: Calcaneus
Action: Plantar flexion |
| Plantaris | Origin: Femur superior to lateral condyle
Insertion: Calcaneus
Action: Plantar flexion and leg flexion |
| Popliteus | Origin: Lateral condyle of femur
Insertion: Proximal tibia
Action: Flexion of leg and medial roation of tibia |
| Tibialis Posterior | Origin: Tibia, fibula
Insertion: 2,3,4 metatarsals, 3 cuneiforms and cuboid
Action: Plantar flexion; inversion of foot |
| Flexor Digitorum longus | Origin: Posterior of tibia
Insertion: Distal phalanges 2-5
Action: Plantar flexion. Flexion of phalanges |
| Flexor Hallucis Longus | Origin: Inferior 2/3ds of fibula
Insertion: Hallux
Action: Plantar flexion and flexion of hallux |
