Week 3: Lower Extremity: Knee, Leg, Foot

Patella

Apex

inferior surface for patellar ligament

Base

superior surface for quadriceps tendon

Posterior medial articular surface (for medial condyle of femur; smaller)

green

Posterior lateral articular surface (for lateral condyle of femur; bigger)

green

Tibia

Lateral superior articular surface of tibial plateau

lateral portion

Medial superior articular surface of tibial plateau

medial portion

Intercondylar eminence

Medial condyle of tibia

Lateral condyle of tibia

Tibial tuberosity

Diaphysis/shaft (tibia)

Inferior articular surface for talus

Medial malleolus

Fibular notch

Fibula

Head

Neck

Diaphysis/shaft (fibula)

Lateral malleolus

Talus

Superior trochlear surface

attachment surface for tibia

Lateral malleolar surface

Medial malleolar surface

navicular articular surface (talonavicular joint)

Tarsal sinus (sinus between talus and calcaneus)

Calcaneus

Calcaneal tuberosity for triceps surae (gastrocnemius and soleus) tendon

Sustentaculum tali (medial shelf for talus)

Posterior talar articular surface

Middle talar articular surface

Anterior talar articular surface

Articular surface for cuboid bone

Navicular

Cuboid bone

Medial cuneiform

Intermediate cuneiform

Lateral cuneiform

First metatarsal

Second metatarsal

Third metatarsal

Fourth metatarsal

Fifth metatarsal

Proximal phalanx of digit 1

Distal phalanx of digit 1

Proximal phalanx of digit 2

Middle phalanx of digit 2

Distal phalanx of digit 2

Proximal phalanx of digit 3

Middle phalanx of digit 3

Distal phalanx of digit 3

Proximal phalanx of digit 4

Middle phalanx of digit 4

Distal phalanx of digit 4

Proximal phalanx of digit 5

Middle phalanx of digit 5

Distal phalanx of digit 5

Quadriceps tendon

Patellar ligament

Medial meniscus

Lateral meniscus

Anterior cruciate ligament

Posterior cruciate ligament

Medial (tibial) collateral ligament

Lateral (fibular) collateral ligament

Popliteal artery

artery

Popliteal vein

vein

Tibial nerve

nerve

Tibialis anterior

Dorsi Flexes the foot

Extensor digitorum longus

Extends toes

Extensor hallucis longus

Extends big toe

Fibularis tertius

Eversion

Anterior tibial artery

artery

Fibularis longus

Eversion

Fibularis brevis

Eversion

Common fibular nerve

nerve highlighted in pink

Deep fibular nerve

nerve, deep

Superficial fibular nerve

nerve, superficial

Medial head of gastrocnemius

plantar flexing the foot at the ankle joint and flexing the leg at the knee joint

Lateral head of gastrocnemius

plantar flexing the foot at the ankle joint and flexing the leg at the knee joint

Soleus

plantar flex your foot

Plantaris

acts with the gastrocnemius but is insignificant as either a flexor of the knee or a plantar flexor of the ankle

Flexor digitorum longus

tendon in tarsal tunnel

flexes big toes

Flexor hallucis longus

tendon in tarsal tunnel

flexes big toe

Tibialis posterior

tendon in tarsal tunnel

invertor

Tibial nerve (in tarsal tunnel)

nerve

Posterior tibial artery (in tarsal tunnel)

artery

Posterior tibial vein (in tarsal tunnel)

vein

Great saphenous vein

vein

Dorsalis pedis artery

Superior extensor retinaculum

Inferior extensor retinaculum

plantar aponeurosis

Medial plantar nerve

nerve in pink

Lateral plantar nerve

nerve in pink

Ankle plantarflexion

Ankle dorsiflexion

Foot supination

Foot pronation