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Compartments of the Thigh (Anterior Compartment (Vastus Intermedius…
Compartments of the Thigh
Anterior Compartment
Vastus Intermedius
Insertion: Patella and Tibial Tuberosity
Action: Extends Knee
Origin: anterior and lateral surface of proximal femur
Nerve: Femoral
Vastus Medialis
Origin: Medial lip of Linea Aspera at Intertrochanteric line
Insertion: Patella and Tibial Tuberosity
Action: Extension of Knee
Nerve: Femoral
Rectus Femoris
Insertion: Tibial Tuberosity and Patella
Origin: AIIS
Nerve: Femoral
Action: Flexion of hip and extension of knee
Vastus Lateralis
Insertion: Patella and Tibial Tuberosity
Action: extension of knee
Origin: Anterior aspect of Greater Trochanter
Nerve: Femoral
Sartorius
A: Flexion, Abduction, ER thigh at hip. Flexes Knee
N: Femoral
I: Medial surface of Tibia
O: ASIS
Pectineus
N-Femoral and Obturator
A: Adducts and flexes thigh- slight IR
I: Pectineal Line of femur
O: Superior ramus of Pubis
Posterior Compartment
Semimembranosus
O: Ischial Tuberosity
I: Medial tibial condyle
N Tibial
A: Flexes Knee and extends hip
Biceps Femoris Long Head
I: Head of fibula
N: Tibial
O: Ischial Tuberosty
A: Flexion of knee and extension of hip
Semitendinosus
N: Tibial
O: Ischial Tuberosity
A: Flexes Knee and extends hip
I: Medial surface of tibial tuberosity
Biceps Femoris Short Head
O: Lateral lip of linea aspera of the femur
I: Head of Fibula
N: Common Fibular
A: Flexion of knee and ER of knee
Medial compartment
Adductor Brevis
I: Pectineal Line
N: Obturator
O: Inferior ramus of Pubis
A: Adducts thigh- slight flexion
Adductor Magnus
O: Inferior ramus and ischial Tuberosity
I: Gluteal tuberosity, Supracondylar line, and adductor tubercel
A: Adducts thigh and flexes thigh
N: hamstring part- Tibial. Adductor Part- Obturator
Adductor Longus
I: Middle third of linea aspera
A: Adducts thigh
O: Body of Pubis
N: Obturator N.
Gracilis
O: Inferior ramus of Pubis
I: Superior part of medial Tibia
Action: Adducts thigh, flexes leg, IR
N: Obturator N.