Lab 6 - Lower Leg Musculature

Gastrocnemius and Plantaris Yellow: Gastrocnemius Blue: Plantaris

Gastrocnemius and Plantaris

Yellow: Gastrocnemius

Blue: Plantaris

Gastrocnemius O - Just above lateral and medial femoral condyles I - Calcaneus via Achilles tendon F - Knee flexion and ankle plantar flexion

Gastrocnemius

O - Just above lateral and medial femoral condyles

I - Calcaneus via Achilles tendon

F - Knee flexion and ankle plantar flexion

Plantaris O - Just above lateral condyle of femur I - Calcaneus via Achilles tendon F - Knee flexion and ankle plantar flexion

Plantaris

O - Just above lateral condyle of femur

I - Calcaneus via Achilles tendon

F - Knee flexion and ankle plantar flexion

Soleus O - Head of fibula and medial border of tibia I - Calcaneus via Achilles tendon F - Ankle plantar flexion

Soleus

O - Head of fibula and medial border of tibia

I - Calcaneus via Achilles tendon

F - Ankle plantar flexion

Lateral Lower Leg Musculature Blue: Tibialis Anterior Yellow: Extensor Digitorum Longus Green: Peroneus Longus Red: Peroneus Brevis

Lateral Lower Leg Musculature

Blue: Tibialis Anterior

Yellow: Extensor Digitorum Longus

Green: Peroneus Longus

Red: Peroneus Brevis

Tibialis Anterior - Lateral View O - Lateral condyle and anterior upper shaft of tibia I - Base of 1st metatarsal and medial cuneiform F - Ankle dorsi flexion and inversion

Tibialis Anterior - Lateral View

O - Lateral condyle and anterior upper shaft of tibia

I - Base of 1st metatarsal and medial cuneiform

F - Ankle dorsi flexion and inversion

Tibialis Anterior - Anterior View

Tibialis Anterior - Anterior View

Extensor Digitorum Longus O - Lateral condyle of tibia, anterior surface of fibula and interosseous membrane I - Middle and distal phalanges of lateral 4 digits F - Ankle dorsiflexion and extension of toes

Extensor Digitorum Longus

O - Lateral condyle of tibia, anterior surface of fibula and interosseous membrane

I - Middle and distal phalanges of lateral 4 digits

F - Ankle dorsiflexion and extension of toes

Peroneus Longus O - Lateral side and head of fibula I - Dorsal surface of 1st metatarsal and medial cuneiform F - Plantar flexion and ankle eversion

Peroneus Longus

O - Lateral side and head of fibula

I - Dorsal surface of 1st metatarsal and medial cuneiform

F - Plantar flexion and ankle eversion

Peroneus Brevis O - Lateral shaft of fibula I - Base of 5th metatarsal F - Plantar flexion and ankle eversion

Peroneus Brevis

O - Lateral shaft of fibula

I - Base of 5th metatarsal

F - Plantar flexion and ankle eversion

Flexor Digitorum Longus O - Lateral condyle of tibia, anterior surface of fibula and interosseous membrane I - Middle and distal phalanges of lateral 4 digits F - Ankle plantar flexion and toe flexion

Flexor Digitorum Longus

O - Lateral condyle of tibia, anterior surface of fibula and interosseous membrane

I - Middle and distal phalanges of lateral 4 digits

F - Ankle plantar flexion and toe flexion

Tibialis Posterior and Flexor Digitorm Longus Yellow: Flexor Digitorum Longus Blue: Tibialis Posterior

Tibialis Posterior and Flexor Digitorm Longus

Yellow: Flexor Digitorum Longus

Blue: Tibialis Posterior

Tibialis Posterior   O - Posterior tibia and fibula and interosseous membrane I - Broad attachment on plantar surface of foot F - Ankle plantar flexion and inversion

Tibialis Posterior  

O - Posterior tibia and fibula and interosseous membrane

I - Broad attachment on plantar surface of foot

F - Ankle plantar flexion and inversion

Flexor Hallucis Longus - Lateral View

Flexor Hallucis Longus - Lateral View

Flexor Hallucis Longus - Medial View O - Posterior and inferior surface of fibula I - Distal phalanx of big toe   F – Ankle plantar flexion and big toe flexion

Flexor Hallucis Longus - Medial View

O - Posterior and inferior surface of fibula

I - Distal phalanx of big toe  

F – Ankle plantar flexion and big toe flexion