Gluteal Muscles Flashcards
Psoas Minor
Origin - T12-L1 intervertebral discs
Insertion - iliopectineal arch
Innervation - primary rami of L1
Action - felxion of hip
Gluteus maximus (superficial)
Origin - Posterior surface of the ilium, sacrum and coccyx
Insertion - iliotibial tract and gluteal tuberosity
Innervation - inferior gluteal nerve
Action - extension of the femur from flexed position and external rotation
Gluteus Medius (superficial)
Origin - External surface of the ilium
Insertion - lateral surface of the greater trochanter
Innervation - superior gluteal nerve
Action - abduction of the hip and internal rotation and prevents hip drop
Gluteus Minimus (superficial)
Origin - Ilium
Insertion - greater trochanter
Innervation - superior gluteal nerve
Action - abduction of the hip and internal rotation and prevents hip drop
Tensor Fascia Lata (superficial)
Origin - ASIS
Insertion - Iliotibial tract
Innervation - superior gluteal nerve
Action - abduction and internal rotation of the limb
Piriformis (deep)
Origin - Anterolateral surface of the sacrum
Insertion - greater trochanter of the femur
Innervation - nerve to piriformis
Action - external rotation and abduction
Obturator Internus (deep)
Origin - Pubis and ischium of the obturator foramen
Insertion - Greater trochanter
Innervation - nerve to obturator internus
Action - external rotation and abduction
Gemelli (two small muscles deep)
Origin -
Superior gemellus from the ischial spine
Inferior gemellus from the ischial tuberosity
Insertion - Greater trochanter
Innervation -
Superior = obturator internus
Inferior = nerve to quadratus femoris
Action - external rotation and abduction
Quadratus Femoris (deep)
Origin - Lateral side of he ischial tiberosity
Insertion - Quadrate tuberosity on intertrochanteric crest
Innervation - nerve to quadratus femoris
Action - external roation and adduction
