Posterior Thigh and Popliteal Fossa Flashcards
Hamstrings
Made up of (3)
Semitendinosus
Semimembranosus
Biceps Femoris
Hamstrings
Function
Extend hip and flex knee
Semitendinosus
Attachments
Ischial tuberosity to the medial surface of the superior tibia
Semitendinosus
Innervation
Tibial division of the Sciatic nerve (L5, S2, S2)
Semimembranosus
Attachments
Ischial tuberosity to the posterior surface of the medial condyle of the tibia
Semimembranosus
Innervation
Tibial division of the Sciatic nerve (L5, S1, S2)
Biceps Femoris
Long head attachments
Ischial tuberosity to the head of the fibula
Biceps Femoris
Short head attachments
Linea aspera and lateral supracondylar line of the femur to the head of the fibula
Biceps Femoris
Long head innervation
Tibial division of the sciatic nerve (L5, S1, S2)
Biceps Femoris
Short head innervation
Common peroneal division of the Sciatic nerve (L5, S1, S2)
Rotaion of the Knee
Lateral rotation by
Biceps femoris
Rotaion of the Knee
Medial rotation by (4)
Semimembranosus
Semitendinosus
Gracillis
Sartorius
Sciatic Nerve
Root value, position and branches
Anterior Rami L4-S3
Deep to long head of biceps femoris
Tibial and Common Peroneal (fibular)
Popliteal Fossa
Roof
Deep fascia pierced by sural nerve and short saphenous vein
Popliteal Fossa
Superior boundaries
Diverging tendons of hamstrings.
Biceps femoris laterally
Semimembranosus and semitendinosus medially
Popliteal Fossa
Inferiorly
Medial and lateral heads of the Gastrocnemius
Popliteal Fossa
Contents
Popliteal artery and vein
Terminal branches of sciatic nerve (Tibial and Common Peroneal)
Popliteal Fossa
Floor
Popliteal surface of the femur
Capsule of the knee joint
Popliteus musle
Oblique popliteal ligament
Middle Genicular vessels
Popliteal Artery
Path
Continuation of femoral artery.
Runs through adductor hiatus to inferior border of popliteus
Popliteal Artery
Branches
5 genicular branches
Terminal branches are anterior and posterior tibial arteries
