Biceps femoris long head peripheral
tibial
Biceps femoris short head peripheral
common peroneal
Biceps femoris (long and short) segmental
L5, S1, S2
Biceps femoris action
Hip extension,
knee flexion
also knee ER (when knee is flexed)
Semitendinosus peripheral
tibial
Semitendinosus segmental
L5, S1, S2
Semitendinosus action
Hip extension,
knee flexion,
also knee IR (when knee is flexed).
Semimembranosus peripheral
tibial
Semimembranosus segmental
L5, S1, S2
Semimembranosus action
Hip extension,
knee flexion,
Knee IR (when knee is flexed).