Semitendinosus
O= Ischial tuberosity I= Medial tibia A= Medially rotate lower leg, extend hip, flex knee In= Sciatic Round cylindrical tendon
Semimembranosus
O= Ischial tuberosity I= Medial tibial condyle A= Medially rotate lower leg, extend hip, flex knee In= Sciatic Flat tendon
Biceps Femoris
O= Ischial tuberosity (long), linea aspera (short) I= Lateral side of head of fibula A= Laterally rotate lower leg, extend hip, flex knee In= Sciatic (long), common fibular (short)
Adductor Magnus
HAMSTRING PART O= Ischial tuberosity I= Adductor tubercle of femur A= Adductor, extension of hip In= Tibial In medial compartment