Leg Anatomy Flashcards
Peroneus Longus
Compartment
Blood
Nerve
Lateral Compartment Anterior Tibial or peroneal Superficial peroneal nerve O: Lateral Fibula I: Base of 1st metatarsal and medial cuneiform
Peroneus Brevis
Compartment
Blood
Nerve
Lateral compartment, anterior tibial or peroneal artery, superficial peroneal nerve
O: lateral fibula
I: 5th metatarsal tuberosity
Posterior Compartment:
Muscles (7)
Motor Nerve
Blood Supply
Gastrocnemius, soleus, plantaris, popliteus, flexor hallicus longus, flexor digitorum longus, and tibialis posterior
Nerve: Tibial nerve
Blood: Posterior tibial artery
Gastrocnemius
O: Lateral and medial condyles of femur
I: Calcaneus
Soleus
O: Fibula and soleal line of tibia
I: Calcaneus
Plantaris
Function
O: Lateral supracondylar line of femur
I: Calcaneus
Organ of proprioception
Popliteus
Function
O: lateral condyle of femur
I: superior soleal line of tibia
Unlocks knee joint
Flexor hallucis Longus
O: fibula and IO membrane
I: base of 1st distal phalanx
Flexor digitorum longus
O: Tibia inferior to soleal line
I: bases of distal phalanges 2-5
Tibialis posterior
O: tibia, fibula, and IO membrane
I: navicular, cuneiforms, cuboid, and bases of metatarsals 2-4
Tibialis Anterior
O: Tibia and IO membrane
I: medial cuneiform and 1st metatarsal
Extensor Digitorum Longus
O: Tibia, fibula, and IO membrane
I: middle and distal phalanges of toes 2-5
Extensor Hallucis Longus
O: Fibula and IO
I: distal phalanx of big toe
Peroneus Tertius
O: Fibula and IO
I: 5th metatarsal base
Anterior Compartment
Muscles (4)
Motor Nerve (1)
Blood Supply
Tibialis anterior, extensor hallucis longus, extensor digitorum longus, peroneus tertius
Nerve: deep peroneal
Blood: Anterior tibial artery…which becomes dorsalis pedis in foot
