Posterior Muscles of Thigh Flashcards
semitendinosus insertion
medial surface of superior part of tibia
semitendinosus orgin
ischial tuberosity
semitendinosus innervation
tibial division of sciatic nerve (L5, S1, S2)
semitendinosus action
extends hip joint; flexes knee joint, and rotates leg medially when knees are flexed , when hip and knee are flexed, can extend trunk
semimembranosus orgin
ischial tuberosity
semimembranosus insertion
posterior part of medial condyle of tibia; reflected attachment forms oblique popliteal ligament
semimembranosus innervation
tibial division of sciatic nerve (L5, S1, S2)
semimembranosus action
extends hip joint; flexes knee joint, and rotates leg medially when knees are flexed , when hip and knee are flexed, can extend trunk
biceps femoris, long head and short head orgins
long head: ischial tuberosity
short head: linea aspera and lateral supracondylar line of femur
biceps femoris, long head and short head insertion
lateral side of head of fibula; tendon is split at the site by fibular collateral ligaments of knee
biceps femoris, long head and short head innervation
long head: tibial division of sciatic nerve (L5, S1, S2)
Short head common fibular of scatic
biceps femoris, long head and short head action
flexes knee joint and rotates it laterally when knee is flexed, extends hip joint