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knr 181
muscles of lower extremeity
15
Anatomy
Undergraduate 1
04/24/2011

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Term
illiopsoas: Illiacus and Psoas Major
Definition
Origin:
Illiacus:illiac crest
Psoas major: Lumbar Vertabrae
Insertion:
lesser trochanter of the femur
Action:
Flexion at the hip
external or lateral rotation
Term
Sartorius
Definition
Origin:ASIS
Insertion:antermedial tibia
Action: Flexion at hip, external rotation, adduction, knee flexion
Term
Rectus Femoris
Definition
Origin:Aiis
Insertion:Patella, tibial tuberosity
Action: Flexion at hip, knee extension
Term
Tensor fascia latae
Definition
origin: illiac crest, ASIS
Insertion: IT band
Action: Abduction of the hip, flexion of the hip
Term
adductor magnus
Definition
origin:pubis and ishium
insertion: linea aspera and adductor tubercle of the femur
Action: adduction of the hip
Term
adductor longus
Definition
origin: Anterior Pubis
Insertion: Linea Aspera
Action: Adduction at hip
Term
Adductor Brevis
Definition
origin: inferior Pubis
insertion: linea aspera
Action: Adduction at the hip
Term
pectinius
Definition
origin: Pubis
Insertion: Posterior femur
Action: Adduction at the hip, flexion at the hip, medial rotation of hip
Term
gracilis
Definition
Origin: Inferior Pubis
Insertion: Anteromedial tibia (Pes Anserine)
Action: adduction, knee flexion
Term
Gluteus maximus
Definition
Origin: Posterior illium, sacrum, coccyxc
Insertion: Femus, ITB
Action: Extension at the hip, lateral rotation
Term
semitendinosus
Definition
Origin: Ishial tuberosity
Insertion: Pes Anserine
Action: extension at the hip
Term
semimembranosus
Definition
Origin: Ishial tuberosity
Insertion: Posteromedial aspect of tibia
Action: extension at hip
Term
Biceps femoris
Definition
Origin:
Long Head: ishial tuberosity
Short head: linea aspera
Insertion: head of fibula, lateral tibia
Action: extension at hip, knee flexion
Term
gluteus medius
Definition
Origin:lateral surface of ilium
insertion:greater trochanter of femur
Action: abduction at the hip, medial rotation
Term
Gluteus Minimus
Definition
Origin: Lateral surface of ilium
insertion: greater trochanter of femur
Action: Abduction at the hip, medial rotation
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