muscles, origins, insertion and nerve supply for knee flexion

what are the 5 muscles needed for knee flexion

• biceps femoris

• semitendinosus

• gracilis

• sartorius

• semimembranosus

where is the origin if the bicep femoris

for the long head = ischial tuberosity

for the short head = linea aspera of the femur

where is the insertion of the bicep femoris

the head of the fibula

what is the nerve supply for the bicep femoris

the sciatic nerve

where is the origin of the semitendinosus 

the ischial tuberosity 

where is the insertion of the semitendinosus

the proximal tibia below the medial condylewha

what is the nerve supply of the semitendinosus

the sciatic and tibial nerve

where is the origin of the gracilis 

the body of pubis, inferior pubic and ischial rami 

where is the insertion of the gracilis

the medial surface of the proximal tibia

what is the nerve supply for the gracilis

the obturator nerve

where is the origin of the sartorius

ASIS

where is the insertion of the sartorius

the proximal tibia below the medial condyle

what is the nerve supply for the sartorius 

the femoral nerve

where is the origin of the semimembranosus

the ischial tuberosity

where is the insertion of the semimembranosus 

the medial condyle of the tibia 

what is the nerve supply for the semimembranosus

the sciatic and tibial nerve