Anterior and Lateral Leg Compartments

what are the characteristics and landmarks of the tibia?

weight bearing bone of the leg

tibial plateau - articulates with femoral condyles

tibial tuberosity - insertion of patellar tendon

medial malleolus - significant prominence at the ankle

what are the characteristics of the fibula?

long, slender bone

serves as an attachment for muscle (no weight bearing)

head is easily palpable

superficial fibular nerve runs superior and posterior to fibular head

lateral malleolus - bony protuberance at ankle, extends 1-2cm more distally than medial malleolus

what is the interosseous membrane?

holds tibia and fibula together

supports and stabilizes superior ankle joint

also serves as an attachment for some muscles

what are the action and innervation of tibialis anterior?

action: dorsiflexion and inversion

innervation: deep fibular nerve

what are the action and innervation of extensor hallicus longus?

action: extension of great toe, assists dorsiflexion

innervation: deep fibular nerve

what are the action and innervation of extensor digitorum longus?

action: toe extension

innervation: deep fibular nerve

what are the action and innervation of fibularis tertius?

action: dorsiflexion and eversion

innervation: deep fibular nerve

what are the nerve and artery of the anterior compartment?

deep fibular nerve

anterior tibial artery

what are the contents of the lateral compartment?

fibularis longus

fibularis brevis

superficial fibular nerve

deep fibular artery

what are the action and innervation of fibularis (peroneus) longus?

action: eversion, assists plantarflexion

innervation: superficial fibular nerve

what are the action and innervation of fibularis (peroneus) brevis?

action: eversion, assists plantar flexion

innervation: superficial fibular nerve