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Muscles
Origins and Insertions
18
Anatomy
Undergraduate 3
06/28/2012

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Cards

Term
rectus femoris
Definition
O: anterior inferior iliac spine
I: tibial tuberosity
A: extends knee; flexes thigh
Term
vastus lateralis
Definition
O: greater trochanter and linea aspera
I: tibial tuberosity
A: extends leg
Term
Vastus Intermedius
Definition
O: Shaft of femur
I: tibial tuberosity
A: extends leg
Term
Vastus Medialis
Definition
O: intertrochanteric line and linea aspera
I: tibial tuberosity
A: extends leg
Term
Sartorius
Definition
O: Anterior superior iliac spine
I: medial to pes anserinus (tibial tuberosity)
A: flexes thigh and rotates thigh laterally
Term
psoas major
Definition
O: transverse processes and bodies (t12-l5)
I: lesser trochanter of the femur
A:flexes thigh and rotates thigh laterally
Term
Iliacus
Definition
O: iliac fossa
I: lesser trochanter of the femur
A: flexes thigh and rotates thigh laterally
Term
pectineus
Definition
O: superior ramus of pubis
I: lesser trochanter of femur
A: adducts, flexes, and medially rotates leg
Term
gracilis
Definition
O: inferior ramus and body of pubis
I: medial tubersotiy (pes anserinus)
A: adducts lower limb
Term
tensor fasciae latae
Definition
O: iliac crest and anterior superior iliac spine
I: iliotibial tract
A: abduct thigh
Term
biceps femoris
Definition
O: ischial tuberosity and linea aspera
I: head of fibula
A: extends thigh and flexes leg; laterally rotates leg
Term
semimembranosus
Definition
O: ischial tuberosity
I: medial condyle of tibea
A: extends thigh and flexes leg, medially rotates leg
Term
Semitendenosus
Definition
O: Ischial tuberosity
I: pes anserinus (medial to tuberosity)
A: extends thigh and flexes leg; medially rotates thigh
Term
Gluteus Maximus
Definition
O: iliac crest, sacrum, and coccyx
I: gluteal tuberosity, linea aspera, and the iliotibial band
A: extends thigh
Term
Gastrocnemius
Definition
O: medial and lateral epicondyles of the femur
I: calcaneus (via calcaneal tendon)
A: plantar flexes foot, flexes knee joint
Term
Soleus
Definition
O: shaft of tibia and fibula
I: calcaneus (via calcaneal tendon)
A: plantar flexes foot
Term
Plantaris
Definition
O: lateral supracondylar ridge of femur
I: calcaneus
A: Plantar flexes foot
Term
Popliteus
Definition
O: lateral condyle of femur
I: posterior surface of tibia
A: flexes leg, medial rotation
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