Fascia Flashcards
Fascia lata
Continuous with:
Superiorly - inguinal ligament, pubic arch, body of pubis, and pubic tubercle
Laterally and posteriorly - iliac crest
Posteriorly - sacrum, coccyx, sacrotuberous ligament and ischial tuberosity
Distally - exposed parts of the bones and around the knee and the deep fascia
Deep fascia
Limits outward extension of contracting muscles, making contraction more efficient in compressing veins to push blood toward the heart
Iliotibial tract
Aponeurosis of the tensor fascia latae and gluteus mamximus muscles - extends from the iliac tubercle to the anterolateral tibial tubercle on the lateral condyle of the tibia
What are the three fascial compartments of the thigh muscles?
Anterior, posterior, and medial compartments
Lateral intermuscular septum
Strongest septa - extends from the iliotibial tract to the lateral lip of the linea aspera and lateral supracondylar line of the femur
Anterior and posterior intermuscular septum
Weak septa - passes from the deep surface of the crura fascia and attach to the corresponding margins of the fibula
What are the three compartments of the leg?
Anterior (dorsiflexor), lateral (fibular), and the posterior (plantarflexor) compartments
Transverse intermuscular septum
Weak septa - divides the plantarflexor muscles in the posterior compartment into the superficial and deep parts
What are the two superficial veins of the lower limb?
Great saphenous and small saphenous veins
What is the function of the perforating veins?
Contain valves that allow blood to flow only from the superficial veins to the deep veins or from the deep veins to the superficial veins
What is the importance of the pattern of venous flow from the perforating veins?
Important for proper venous return from the limb because it enables muscular contractions to propel blood toward the heart against the pull of gravity (muculovenous pump)
