Feets of Clay

Biceps Femoris

Origin: 
LONG HEAD: ischial tuberosity SHORT HEAD: posterior midshaft of femur
Insertion: 
head of fibula
Action: 
hip extension, knee flexion, lateral rotation of femur
Joint/s Moved: 
hip, knee
Bone of Origin: 
coxal bone
Bone of Insertion: 
fibula