Ankle and Foot Muscles

O: Medial and lateral condyles of femur

I: Posterior calcaneus

A: Knee flexion and ankle plantar flexion

• Soleus

• Plantaris

• Gastrocnemius

• Tibialis Posterior

O: Posterior tibia and fibula

I: Posterior calcaneus

A: Ankle plantar flexion

• Soleus

• Plantaris

• Gastrocnemius

• Tibialis Posterior

O: Posterior lateral condyle of femur

I: Posterior calcaneus

A: Very weak assist in knee flexion and ankle plantar flexion

• Soleus

• Plantaris

• Gastrocnemius

• Tibialis Posterior

O: Interosseous membrane, adjacent tibia and fibula

I: Navicular and most tarsals and metatarsals

A: Ankle inversion; assists in plantar flexion

• Soleus

• Plantaris

• Gastrocnemius

• Tibialis Posterior

O: Posterior tibia

I: Distal phalanx of four lesser toes

A: Flexes the four lesser toes; assists in ankle inversion and plantar flexion of the ankle

• Flexor Hallucis Longus

• Flexor Digitorum Longus

• Tibialis Anterior

• Extensor Hallucis Longus

O: Lateral tibia and interosseous membrane

I: First cuneiform and first metatarsal

A:Ankle inversion and dorsiflexion

• Flexor Hallucis Longus

• Flexor Digitorum Longus

• Tibialis Anterior

• Extensor Hallucis Longus

O: Fibula and interosseous membrane

I: Distal phalanx of great toe

A: Extends first toe IP and MTP joints; assists in ankle inversion and dorsiflexion

• Flexor Hallucis Longus

• Flexor Digitorum Longus

• Tibialis Anterior

• Extensor Hallucis Longus

O: Fibula and interosseous membrane

I: Distal phalanx of great toe

A: Extends first toe IP and MTP joints; assists in ankle inversion and dorsiflexion

• Flexor Hallucis Longus

• Flexor Digitorum Longus

• Tibialis Anterior

• Extensor Hallucis Longus

O: Lateral proximal fibula and interosseous membrane

I: Plantar surface of first cuneiform and metatarsal

A: Ankle eversion; assists in ankle plantar flexion

• Fibularis Longus

• Fibularis Brevis

• Fibularis Tertius

• Extensor Hallucis Longus

O: Lateral distal fibula

I: Tuberosity on base of fifth metatarsal

A:Ankle eversion; assists in plantar flexion

• Fibularis Longus

• Fibularis Brevis

• Fibularis Tertius

• Tibialis Posterior