Thigh Muscles Origins and Insertions

Question 1

Rectus Femoris

Answer 1

O: AIIS, Acetabular roof
I: Tibial tuberosity via patellar ligament
A: Flex hip, Ext knee
Inner: Femoral nerve

Question 2

Vastus medialis

Answer 2

O: medial lip of linea aspera
I: Tibial tuberosity via patellar ligament
A: Ext knee
Inner: Femoral nerve

Question 3

Vastus lateralis

Answer 3

O: Lateral lip of linea aspera
I: Tibial tuberosity via patellar ligament
A: ext knee
Inner: femoral

Question 4

Vastus Intermedius

Answer 4

O: Anterior femur
I: Tibial tuberosity via patellar ligament
A: ext knee
Inner: femoral

Question 5

Biceps Femoris (long head)

Answer 5

O: Ischial tuberosity, Sacrotuberous ligament
I: Head of fibula
A: Ext hip, Flex knee, ER tibia
Inner: Tibial nerve

Question 6

Biceps Femoris (short head)

Answer 6

O: Laterial lip of linea aspera
I: Head of fibula
A: Flex knee, ER tibia
Inner: Common fib nerve

Question 7

Semitendonosis

Answer 7

O: Ischial tuberosity, Sacrotuberous ligament
I: Medial to the tibial tuberosity via Pes anserinus
A: EXT hip, Flex knee, IR tibia
Inner: Tibial nerve

Question 8

Semimembranosus

Answer 8

O: Ischial tuberosity, Sacrotuberous ligament
I: Medial tibial condyle
A: EXT hip, Flex knee, IR tibia
Inner: Tibial nerve

Question 9

Popliteus

Answer 9

O: Lateral femoral condyle
I: Posterior tibial surface
A: flex knee, IR tibia, ER femur
Inner: Tibial nerve