Actions & Attachments Flashcards
Attachments of Gluteus Maximus
origin: iliac crest, posteiror sacru, coccyx, sacrotuberous ligament
insertion: gluteal tuberosity and iliotibial tract
Attachments of gluteus medius
origin: upper half of external surface of illium
insertion: grater trochanter
attachments of gluteus minimus
origin: upper half of external surface of illium
insertion: grater trochanter
attachments of tensor fascia latae
O: anterior iliac crest between ASIS and iliac tubercle
I: IT Band (Lateral condyle of tibia)
attachments of piriformis
O: anterior surface of sacrum
I: superior border of greater trochanter
attachments of gemellis superior
O: Ischial spine
I: trochanteric fossa
attachments of gemellis inferior
O: Ischial tuberosity
I: trochanteric fossa
attachments of obturator internus
O: obturator membrane & surrounding bones
I: trochanteric fossa
attachments of quadratus femoris
O: Ischial tuberosity
I: Intertrochanteric crest
attachments of obturator externus
O: Obturator foramen
I: trochanteric fossa of femur
Laterally rotate thigh
piriformis, gemellis superior and infeior, obturator internis, quadratis femoris, obturator externis
ABDuct thigh when thigh is flexed
piriformis, gemellis superior and inferior, obturator internis, quadratis femoris
Extend flexed thigh
gluteus maximus - also laterally rotates high/thigh
ABduct and medially rotate hip/thigh
gluteus medius, minimus, tensor fascia latae
