Muscle Compartments
Three compartments of the leg
What are: anterior, lateral, and posterior
Two branches of the sciatic nerve and where they split.
Tibial nerve and common fibular nerve. Split superior to the popliteal fossa.
The continuation of the femoral artery
Popliteal artery.
The anterior crucial ligament and posterior crucial ligament attach anterior and posterior to this structure.
Intercondylar eminence.
These nodes are located posterior to the knee.
Popliteal nodes.
Separates the anterior compartment from the lateral compartment
Anterior intermuscular septum
Branches of the common fibular nerve and what compartments they innervate.
Deep fibular nerve (anterior compartment). Superficial fibular nerve (lateral compartment).
Posterior tibial artery terminates by branching into which two arteries.
Medial and lateral plantar arteries.
The pes anserinus is the common attachment site for these muscles.
Sartorius, gracilis, and semitendinous muscles.
Most of the superficial lymphatic drainage of the leg is towards this vein.
Great saphenous vein.
Tough layer of dense fibrous tissue located deep to superficial fascia
What is the crural fascia?
This nerve is located very superficially near the head of the fibula and thus is susceptible to damage.
Common fibular nerve.
Vein of the lateral compartment of the leg
No primary venous drainage! Drains into the perforating arteries.
This structure forms the lateral portion of the ankle.
Lateral malleolus (distal end of fibula).
Superficial drainage passes the great saphenous vein to continue towards this region
inguinal region
Name all the muscles of the deep posterior compartment.
Popliteus, flexor hallicus longus, flexor digitorum longer, tibialis posterior
Dermatomes of the anterior and medial surfaces of the leg.
L4 and L5
This artery courses posterior to the medial malleolus and is often palpated for a pulse to evaluate distal blood flow.
Posterior tibial artery.
These structures form the tibial plateau.
Medial and lateral condyles
Lymph from the posterior aspect of the leg and posterolateral sole drains towards this vein.
Small saphenous vein.
The general innervation, blood supply, and muscle type of the anterior compartment.
Deep fibular nerve, anterior fibular artery, dorsiflexors
Named cutaneous nerves of the leg and where they innervates.
Saphenous nerve (anterior and medial leg). Lateral sural cutaneous nerve (lateral leg). Medial sural cutaneous nerve (posterior leg).
Name all the deep veins of the leg and where they drain.
Fibular vein, posterior tibial vein, anterior tibial vein. All drain into the popliteal vein.
The proximal end of the fibula articulates with what structure.
Inferior surface of tibia's lateral condyle.
Deep lymphatic vessels within the popliteal fossa receive lymph from here.
Posterior aspect of leg and posterolateral sole.