Compartments of Leg Flashcards
The interosseus membrane contains two aperatures. What are they called, what do they convey, and where are they?
Aperature for anterior tibial vessels (carries anterior tibial vessels and is at superior end of interosseus membrane). Aperature for perforating branch of fibular artery (carries vessel of that name, is at inferior end of interosseus membrane)
Two branches of the popliteal artery
Anterior tibial and posterior tibial
Where does the posterior tibial artery run?
Between the superficial and deep muscles
Where do muscles in the lateral compartment of the leg get blood from?
Perforating branches off the fibular artery
What does the anterior tibial artery feed?
The anterior compartment of the leg
Where does the anterior tibial artery descend through the leg?
On the anterior surface of the interosseus membrane
What descends through the leg with the anterior tibial artery and where do they descend?
The deep fibular nerve. They descend on the anterior surface of the interosseus membrane
Where does the anterior tibial artery cross the ankle and what is it called after this point?
Midway between lateral and medial malleoulus. It becomes the dorsalis pedis artery at this point
What does the posterior tibial artery supply?
Posterior and lateral compartments of the leg, and the foot
The tarsal tunnel runs directly behind what structure?
The medial malleolus
What supplies the muscles of the posterior compartment of the leg?
The tibial nerve
What does the tibial nerve supply and what nerve is this a branch of?
Supplies all muscles in posterior compartment of leg, is a branch of sciatic nerve
What structures does the common fibular nerve supply?
Muscles of the anterior and lateral compartments of leg
What supplies the muscles of the anterior and lateral compartments of the leg?
The common fibular nerve
What are the superficial muscles supplied by the tibial nerve?
Gastrocnemius, plantaris, soleus
