Muscles
of posterior group of thigh
Muscle
|
Origin
|
insertion
|
nerve
|
action
|
comment
|
Posterior: Hamstrings
|
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Semitendinosus
|
Ischial tuberosity
|
Proximal medial tibia(pes anserinus)
|
Sciatic(tibial)
|
Extend thigh, flex leg
|
Tendon used in ligament reconstruction(ACL)
|
Semimembranosus
|
Ischial tuberosity
|
Posterior medial tibial condyle
|
Sciatic(tibial)
|
Extend thigh, flex leg
|
A border in medial approach
|
Biceps femoris: long head
|
Ischial tuberosity
|
Head of fibula
|
Sciatic(tibial)
|
Extend thigh, flex leg
|
Can avulse front origin(avulsion fx)
|
Biceps femoris: short head
|
Linea aspera, supracondylar line
|
Fibula, lateral tibia
|
Sciatic(peroneal)
|
Extend thigh, flex leg
|
Share tendon insertion with long head
|
Ref) Netter’s concise orthopaedic anatomy P268
