Muscles that Act on the Thigh OIAs Flashcards
psoas major
O: T12 and lumbar vertebrae
I: lesser trochanter of femur
A: flexes thigh and flexes trunk on femur
iliacus
O: iliac crest and fossa
I: lesser trochanter of femur
A: flexes thigh and flexes trunk on femur
gluteus maximus
O: iliac crest, posterior gluteal surface of ilium, sacrum, and coccyx
I: upper posterior surface of femur and iliotibial tract
A: extends and laterally rotates thigh
gluteus medius
O: middle gluteal surface of ilium
I: greater trochanter of femur
A: abducts an medially rotates thigh
gluteus minimus
O: inferior gluteal surface of ilium
I: greater trochanter of femur
A: abducts and medially rotates thigh
tensor fascia latae
O: iliac crest and lateral ASIS
I: iliotibial tract
A: flexes, abducts, and medially rotates thigh
piriformis
O: sacrum
I: greater trochanter of femur
A: laterally rotates and abducts thigh
obturator internus
O:
I:
A: laterally rotates and abducts thigh
adductor magnus
O: inferior ramus of pubis ischium
I: linea aspera of femur
A: adducts and laterally rotates thigh
adductor longus
O: crest and symphysis of pubis
I: linea aspera of femur
A: adducts and laterally rotates thigh
adductor brevis
O: inferior ramus of pubis
I: linea aspera of femur
A: adducts and laterally rotates thigh
adductor brevis
O: inferior ramus of pubis
I: linea aspera of femur
A: adducts and laterally rotates thigh
pectineus
O:
I:
A: adducts and flexes thigh
