Presentation on theme: "Thigh and Buttock. Thigh Three Compartments; ant., medial and posterior Lateral thigh consists of thickened fascia of the lower extremity called the Fascia."— Presentation transcript:
Thigh and Buttock
Thigh Three Compartments; ant., medial and posterior Lateral thigh consists of thickened fascia of the lower extremity called the Fascia Latae called the Iliotibial Band (Tract) that serves as an insertion of the Tensor Fascia Latae muscle Extends distal and lateral to knee, inserts on the tibia at Gerdy’s Tubercle
Thigh Anterior compartment = knee extensors and some hip flexors; innervated by femoral nerve, blood supply by femoral artery and its branches Medial Compartment = hip adductors (some rotation and flexion); innervated by obturator nerve and its branch, blood supply by branches off deep femoral artery and obturator artery Posterior compartment = hip extensors and knee flexors; innervated by tibial or common peroneal nerves, blood supply by deep femoral artery
Deep Buttocks “External Rotators of the Hip” Small Muscles Mostly attach near or on greater trochanter Excellent mechanical advantage for 1) producing external rotation and 2) to help maintain stability of the hip All but one innervated by named nerves specific to one or two of them The exception is the obturator externus – innervated by posterior brach of obturator n.
Deep Buttock Muscles: Piriformis Superior Gemellus Obturator Internus Inferior Gemellus Quadratus Femoris Obturator Externus