Quiz 9 Flashcards
Lateral Compartment Posterior Compartment 1st and 2nd Layer of the foot
What is the attachment for the posterior intermuscular septum?
Cruel Fascia
What deratome(s) has the incision been made?
S1 & L5
What two structures running in the superficial fascia are posterior to the incision site?
Small Saphenous Vein
Sural Nerve
What ligament needs to be cut transversely to open the joint capsule ?
Calcaneofibular ligament
In this surgical field, does one have to be cautious of disrupting the nerve supply to the fibularis longus & brevis?
No. Noth muscles have recieved fibers from the superficial nerve proximal to the surgical field. Also, the superficial nerve itself is now superficial.
What are the contents of the lateral compartment ?
Fibularis Brevis
Fibularis Longus
Superficial Fibular Nerve
Lateral Compartment
Motor innervation?
Main Blood Supply?
Common Function?
Motor: Superficial Fibular Nerve
Blood Supply: Branches of the fibular and anterior tibial arteries
Common Function: Eversion of foot and weak ankle plantarflexion
Where does the fibular artery begin?
It arises from the posterior tibial artery @ 2.5cm distal to the inferior border of popliteus
Near the lateral edge of the achilles tendon, what two structres run in close proximity to each other other within the superfiscial fascia?
Small saphenous vein
Sural Nerve
What dermtome innervates the posterior aspect of hte leg
S2 (posteior femoral cutanous)
Lateral sural cutaneous
Medial sural cutaneous
Saphenous N
Sural N.
