Lateral & Anterior Leg & Dorsum Foot

Fibularis (Peroneus) Longus - Origin - Lateral Compartment

Head and superior lateral surface of fibula

Fibularis (Peroneus) Longus - Insertion - Lateral Compartment

Medial cuneiform and base of 1st metatarsal

Fibularis (Peroneus) Longus - Peripheral Innervation - Lateral Compartment

Superficial (peroneal) fibular nerve

Fibularis (Peroneus) Longus - Segmental Innervation - Lateral Compartment

L5, S1, S2

Fibularis (Peroneus) Longus - Action - Lateral Compartment

Ankle eversion; weak ankle plantar flexion (PF)

Fibularis (Peroneus) Brevis - Origin - Lateral Compartment

Inferior lateral surface of fibula

Fibularis (Peroneus) Brevis - Insertion - Lateral Compartment

Styloid process (or base) of 5th metatarsal

Fibularis (Peroneus) Brevis - Peripheral Innervation - Lateral Compartment

Superficial (peroneal) fibular nerve

Fibularis (Peroneus) Brevis - Segmental Innervation - Lateral Compartment

L5, S1, S2

Fibularis (Peroneus) Brevis - Action - Lateral Compartment

Ankle eversion; weak ankle plantar flexion (PF)

Extensor Digitorum Brevis - Origin

Dorsum of calcaneus (near stem of inferior extensor retinaculum)

Extensor Digitorum Brevis - Insertion

Long extensor tendons of toes 2, 3, and 4

Extensor Digitorum Brevis - Peripheral Innervation

Deep (peroneal) fibular nerve

Extensor Digitorum Brevis - Action

Toes 2-5 MTP, PIP, and DIP extension (assists extensor digitorum longus)

Extensor Hallucis Brevis - Origin

In common with extensor digitorum brevis (above)

Extensor Hallucis Brevis - Insertion

Dorsal aspect of base of proximal phalanx of great toe (digit 1)

Extensor Hallucis Brevis - Peripheral Innervation

Deep (peroneal) fibular nerve

Extensor Hallucis Brevis - Action

Assists extensor hallucis longus with 1st MTP extension

Tibialis Anterior - Origin - Anterior Compartment

Lateral condyle, superior lateral surface of tibia, interosseous membrane

Tibialis Anterior - Insertion - Anterior Compartment

Medial cuneiform and base of 1st metatarsal

Tibialis Anterior - Peripheral Innervation - Anterior Compartment

Deep (peroneal) fibular nerve

Tibialis Anterior - Segmental Innervation - Anterior Compartment

L4, L5

Tibialis Anterior - Action - Anterior Compartment

Ankle dorsiflexion (DF) and inversion

Extensor Digitorum Longus - Origin - Anterior Compartment

Lateral condyle, superior medial surface of fibula, interosseous membrane

Extensor Digitorum Longus - Insertion - Anterior Compartment

Middle and distal phalanges of digits 2-5

Extensor Digitorum Longus - Peripheral Innervation - Anterior Compartment

Deep (peroneal) fibular nerve

Extensor Digitorum Longus - Action - Anterior Compartment

MTP, PIP, and DIP extension of digits 2-5; ankle dorsiflexion (DF)

Fibularis (Peroneus) Tertius - Origin - Anterior Compartment

Inferior anterior surface of fibula and interosseous membrane

Fibularis (Peroneus) Tertius - Insertion - Anterior Compartment

Dorsum of base of 5th metatarsal

Fibularis (Peroneus) Tertius - Peripheral Innervation - Anterior Compartment

Deep (peroneal) fibular nerve

Fibularis (Peroneus) Tertius - Action - Anterior Compartment

Ankle dorsiflexion (DF) and assists in eversion

Extensor Hallucis Longus - Origin - Anterior Compartment

Middle anterior fibula and interosseous membrane

Extensor Hallucis Longus - Insertion - Anterior Compartment

Dorsal aspect of base of distal phalanx of great toe (hallux)

Extensor Hallucis Longus - Peripheral Innervation - Anterior Compartment

Deep (peroneal) fibular nerve

Extensor Hallucis Longus - Segmental Innervation - Anterior Compartment

L5, S1

Extensor Hallucis Longus - Action - Anterior Compartment

Extension of 1st MTP and IP joints; ankle dorsiflexion (DF)