SA - OIAN gluteal Flashcards
Gluteus medius
O: external ilium between anterior and posterior gluteal lines
I: lateral surface of gr trochanter of femur
A: abduct and MR of thigh; keeps pelvis level when ipsi is weight bearing and other is in the swing phase
N: superior gluteal nerve
Gluteus Maximus
O: ilium posterior to posterior gluteal line; dorsal surface of sacrum and coccyx; sacrotuberous ligament
I: iliotibial tract, lateral condyle of tibia; gluteal tuberosity
A: extend thigh and assist in lateral rotation; steadies thigh and assists in standing up
N: inferior gluteal nerve
Gluteus minimus
O: External surface of ilium between ant and post gluteal lines
I: ant surface of gr trochanter of femur
A: abd and MR; keeps pelvis level when ipsi leg is weight bearing and the other is in the swing phase
N: sup gluteal nerve
Tensor fascia lata
O: ASIS; ant part of iliac crest
I: iliotibial tract, attaches to lat condyle of tibia
A: abd and MR; keeps pelvis level when ipsi leg is weight bearing and the other is in the swing phase
N: sup gluteal
Piriformis
O: ant surface of ilium; ant iliac crest
I: sup border of gr trochanter of femur
A: lateral rotate extended thigh and abd flexed thigh; steady femoral head in acetabulum
N: ant rami S1
Obturator internus
O: pelvic surface of obturator membrane and surrounding bones
I: medial gr trochanter
A: laterally rotate extended thigh and abd flexed thigh; steady femoral head in acetabulum
N: n to obturator internus
Sup and inf gemelli
O: sup - ischial spine O: inf - ischial tubrosity I: med gr trochanter A: lat rotate extended thigh and abd flexed thigh; steady femoral head in acetabulum N: sup - n to obterator internis N: inf - n to quadrants femoris
Quadratus femoris
O: lat border of ischial tuberosity
I: quadrate tubercle on intertrochanteric crest
A: lateral rotation of thigh; steadies femoral head in acetabulum
N: n to quadratic femoris
Psoas major
O: transverse processes of lumbar vertebrae; sides of bodies of T12-L5 vertebrae and IVDs
I: lesser trochanter of femur (by tendon)
A: flexs thigh with ilacus; acting superiorly flexes vertebral column laterally; balance the trunk; acts with ilacus while sitting to flex trunk
N: anterior rami of lumbar n L1,L2,L3
Iliacus
O: superior 2/3 of iliac fossa, ala of sacrum, anterior SIJ
I: lesser trochanter and shaft inferior to it; greater psoas tendon
A: flexion of thigh and stabilizes hip joint; acts with psoas major
N: femoral n
Quadratus Lumborum
O: iliolumbar ligament and internal lip of iliac crest
I: medial half of inferior border of 12th ribs and tips of lumbar TPs
A: extends and laterally flexes vertebral column; fixes 12th rib during inspiration
N: anterior branches of T12, L1-L4 spinal nn.
Psoas minor
O: sides of T12-L1 vert and IVDs
I: pectineal line, iliopectineal eminence via iliopectineal arch
A: flex thigh and stabilize the joint
N: ant rami of lumbar n (L1, L2)
