Leg and ankle joint Flashcards
(41 cards)
4 compartments of the leg
Anterior
Lateral
Superficial posterior
Deep posterior
Muscles in the anterior compartment of the leg
Tibialis anterior
Extensor hallicis longus
Extensor digitorum longus
Fibularis tertius (only some people have this)
Innervation of the muscles of the anterior compartment of the leg
Deep fibular nerve
Blood supply of the anterior compartment of the leg
Anterior tibial artery
To get to the anterior compartment of the leg, what does the deep fibular nerve have to pass through
anterior intermuscular septum
What nerve innervates the webbing between toes 1-2
Deep fibular nerve
Action of the anterior compartment muscles of the leg
Dorsiflexion
overuse resulting in trauma of the tibialis anterior due to small tears in the periosteum
Shin splints
What motor/sensory deficits would compartment syndrome result in if there is damage to deep fibular nerve
Loss of DF, numbness and tingling between toes 1-2
Muscles in the lateral compartment of the leg
fibularis longus (superficial to brevis)
Fibularis brevis (deep to longus)
Actions of the muscles in the lateral compartment
Plantarflexion
Eversion
Innervation of the muscles in the lateral compartment of the leg
Superficial fibular nerve
Blood supply of the muscles of the lateral compartment of the leg
Fibular artery
Cutaneous innervation of the lateral leg
lateral sural cutaneous nerve
Action of the posterior compartment muscles of the leg
plantarflexion
Innervation of the posterior compartment muscles of the leg
tibial nerve
Blood supply of the posterior compartment muscles of the leg
posterior tibial artery
Muscles of the superficial posterior compartment of the leg
Gastrocnemius
Soleus
Plantaris
What tears w/ sudden unexpected or violent DF of the foot while in PF or sudden forced plantar flexion
Achilles tendon (calcaneal tendon)
Test to see if Achilles tendon (calcaneal tendon) is torn
Calf squeeze test
What runs through the tendinous arch of soleus
Tibial nerve and popliteal artery
Muscles of the deep posterior compartment of the leg
Tibialis posterior
Flexor digitorum longus
Flexor hallucis longus
Where does the superficial posterior compartment innervation originate
S1,S2 of tibial nerve
where does the deep posterior compartment of leg innervation originate
L4-S2 of tibial nerve