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Iliopsoas

Origin -- Iliacus

Medial ilium

Iliopsoas

Origin -- Psoas major & minor

Inferior borders of transverse processes L1-5, sides of bodies of T12-L5 and intervertebral disks, and proximal sacrum


Iliopsoas

Insertion -- Iliacus & psoas major
Lesser trochanter and femoral shaft just inferior

Iliopsoas

Insertion -- Psoas minor
Pectineal line (ilium)


Iliopsoas

Action

Hip flexion

Hip external rotation

Sartorius

Origin

ASIS and notch just inferior to spine


Sartorius

Insertion


Pes anserine

Sartorius

Action
Hip flexion

Knee flexion

Hip external rotation

Rectus femoris

Origin

AIIS and groove (posterior) superior to acetabulum


Rectus femoris

Insertion


Tibial tuberosity

Rectus femoris

Action

Hip flexion

Knee extension

Tensor Fasciae Latae

Origin

Anterior iliac crest and ilium just inferior to crest

Tensor Fasciae Latae

Insertion
Gerdy's tubercle via IT band

Tensor Fasciae Latae

Action

Hip abduction

Hip flexion

Gluteus Maximus

Origin

Posterior 1/4 of crest of ilium, posterior sacrum and coccyx


Gluteus Maximus

Insertion


Gluteal tuberosity and IT band

Gluteus Maximus

Action

Hip extension

Hip external rotation

Gluteus Medius

Origin

Lateral ilium just inferior to crest

Gluteus Medius

Insertion

Posterior and middle greater trochanter

Gluteus Medius

Action

Hip abduction
Hip external rotation (posterior fibers)
Hip internal rotation (anterior fibers)


Gluteus Minimus

Origin

Lateral ilium just inferior to origin of gluteus medius

Gluteus Minimus

Insertion

Anterior greater trochanter

Gluteus Minimus

Action

Hip abduction

Hip internal rotation

Semitendinosus

Origin

Ischial tuberosity

Semitendinosus

Insertion

Pes anserine

Semitendinosus

Action
Hip extension
Knee flexion
Hip internal rotation
knee internal rotation


Semimembranosus

Origin


Ischial tuberosity

Semimembranosus

Insertion

Posteromedial medial tibial condyle

Semimembranosus

Action
Hip extension
Knee flexion
Hip internal rotation
Knee internal rotation

Biceps femoris

Origin -- Long Head

Ischial tuberosity

Biceps femoris

Origin -- Short Head

Inferior half of linea aspera, and lateral condyloid ridge

Biceps femoris

Insertion

Lateral condyle of tibia and head of fibula

Biceps femoris

Action
Hip extension
Knee flexion
Hip external rotation
Knee external rotation

Adductor Brevis

Origin

Anterior, inferior pubic ramus just distal to origin of longus

Adductor Brevis

Insertion
Inferior 2/3 of pectineal line of femur and superior half of medial lip of linea aspera

Adductor Brevis

Action

Hip adduction
Hip external rotation


Adductor Longus

Origin


Anterior pubis just below its crest

Adductor Longus

Insertion

Middle third of linea aspera

Adductor Longus

Action

Hip Adduction

Adductor Magnus

Origin

Edge of entire pubic ramus and ischium, and ishcial tuberosity

Adductor Magnus

Insertion

Length of linea aspera, medial condyloid ridge, and adductor tubercle


Adductor Magnus

Action


Hip adduction
Hip external rotation


Gracilis

Origin

Anteromedial edge of descending pubic ramus

Gracilis

Insertion

Pes anserine

Gracilis

Action

Hip adduction
Knee flexion
Hip internal rotation


Vastus Lateralis

Origin
Interochanteric line, anterior and inferior borders of greater trochanter, gluteal tuberosity, upper 1/2 of linea aspera and entire lateral intermuscular septum

Vastus Lateralis

Insertion

Tibial tuberosity

Vastus Lateralis

Action

Knee extension

Vastus Intermedius

Origin

Superior 2/3 of anterior femur

Vastus Intermedius

Insertion

Tibial tuberosity
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