Anterior Superficial Muscle

O – Lateral condyle and upper 2/3 of tibial shaft; interosseous membrane

I – Medial cuneiform and first metatarsal

A – Dorsiflexion, inversion, supports medial longitudinal arch

Anterior Superficial Muscle

O – Lateral condyle of tibia; proximal ¾ of fibula; interosseous membrane

I – Middle/distal phalanges of toes 2-5

A – Toe extension, dorsiflexion

Anterior Superficial Muscle

O – Distal anterior fibula; interosseous membrane

I – Dorsum of fifth metatarsal

Anterior Superficial Muscle

O – Anteromedial fibula; interosseous membrane

I – Distal phalanx of big toe

Lateral Superficial Muscle

O – Upper portion of lateral fibula

I – First metatarsal and medial cuneiform

A – Plantar flexion, foot eversion; keeps foot flat on ground

Lateral Superficial Muscle

O – Distal fibula shaft

I –Proximal end of fifth metatarsal

A – Plantar flexion and eversion

Triceps Surae 

complex of which two muscles

Both located Posterior Superficial leg muscles

1. Gastrocnemius

2. Soleus

Posterior Superficial Muscle

  O – Medial and lateral condyles of 

femur

   I – Posterior calcaneous

  A – Plantar flexes foot when knee is extended; can also flex knee when foot is dorsiflexed

Posterior Superficial Muscle

  O – Superficial tibia, fibula, and interosseous membrane

   I – Posterior calcaneous

  A – Plantar flexes foot, locomotor and postural

Posterior Deep Muscle

O – Posterior tibia

I – Under foot to distal phalanx of toes 2-5

A – Plantar flexion, foot inversion; flexes toes; helps foot “grip” ground

Posterior Deep Muscle

O – Midshaft of fibula; interosseous membrane

I – Under foot to distal phalanx of big toe

A – Plantar flexion, inversion; “push off” during walking

Posterior Deep Muscle

O – Superior tibia and fibula; interosseous membrane

I – Behind medial malleolus and under arch; inserts into tarsals and metatarsals 2-4

A – Foot inversion; plantar flexion; stabilizes medial longitudinal arch

Dorsum of Foot

O – Anterior calcaneous; extensor retinaculum

I – Base of proximal phalanx of great toe

A – Extends toes at metarsophalangeal joints

Flexor Digitorum Brevis

Sole of Foot (most superficial)

O – Calcaneal tuberosity

I – Middle phalanx of toes 2-4

A – Flex toes

Sole of Foot (most superficial)

O – Calcaneal tuberosity and flexor retinaculum

I – Proximal phalanx of great toe, medial side, in tendon of flexor hallucis brevis

A – Abducts great toe

Sole of Foot (most superficial)

O – Calcaneal tuberosity

I – Lateral side of base of little toe’s proximal phalanx

A – Abducts and flexes little toe

Sole of foot (3rd layer)

O – Lateral cuneiform and cuboid bones

I – Two tendons on base of proximal phalanx of great toe

A – Flexes great toe’s metatarsophalangeal joint

Sole of Foot (3rd layer)

O – 5^th metatarsal and tendon sheath of fibularis longus

I – Base of proximal phalanx of toe 5

A – Flexes little toe at metatarsophalangeal joint

Sole of Foot (Deepest, 4th layer)

O – sides of metatarsals

I – extensor expansion over 1^st phalanx of toes 2-4 on side opposite midaxis of foot and both sides of toe 3

A – abduct (diverge) toes

Sole of Foot- Deepest (4th layer)

O – the side of each metatarsal that faces the midaxis of the foot

I – extensor expansion on 1^st phalanx of each toe (except toe 3) on side facing midaxis of foot

A - adducts toes

Stepping down on a gas pedal

The angle between the shin and the top of foot increases from normal flat foot position

Pointing foot upward

The angle between the foot and the shin decreases 

Foot moves inward toward midline

ex. Kicking a soccer ball!