Psoas major
O: transverse processes of lumbar vertebrae
I: lesser trochanter of femur
A: flexes thigh and flexes trunk
N: L2 and L3 branches of lumbar plexus
Iliacus
O: upper 2/3 of iliac fossa
I: lesser trochanter with tendon of psoas major
A: flexes thigh
N: femoral nerve
gluteus maximus
O: outer surface of ilium, adjacent post. surface of sacrum & coccyx
I: iliotibial tract; gluteal tuberosity
A: abducts, extends and laterally rotates thigh
N: inferior gluteal nerve
gluteus medius
O: outer surface of ilium inferior to iliac crest
I: lateral surface of greater trochanter
A: abducts and medially rotates thigh
N: super gluteal nerve
gluteus minimus
O: outer surface of ilium between anterior and inferior gluteal line
I: anterior surface of greater trochanter
A: abducts and medially rotates thigh
N: superior gluteal nerve
tensor fascia latae
O: outer lip of iliac crest between ASIS and iliac tubercle
I: upper part of iliotibial tract
A: abducts and flexes thigh
N: superior gluteal nerve
piriformis
O: internal surface of sacrum
I: upper border of greater trochanter
A: laterally rotates and abducts thigh
N: 1st and 2nd sacral nerve
obturator internus
O: pelvic surface of obturator membrane and surrounding bones
I: common tendon with superior and inferior gemelli to medial surface of greater trochanter
A: laterally rotates thigh
N: nerve to the obturator internus
gemellus superior
O: spine of ischium
I: w/ tendon of obturator internus into upper border of greater trochanter
A: laterally rotates thigh
N: branch of nerve to obturator internus frojm sacral plexus
gemellus inferior
O: upper margin of ischial tuberosity
I: w/ tendon of obturator internus into upper border of greater trochanter
A: laterally rotates thigh
N: branch of nerve to quadratus femoris from sacral plexus
quadratus femoris
O: lateral border of ischial tuberosity
I: below intertrochanteric crest
A: laterally rotates thigh
N: nerve to the quadratus femoris
obturator externus
O: outer surface of inferior & superior rami of pubis, ramus of ischium
I: trochanteric fossa of femur
A: laterally rotates thigh
N: obturator nerve