Gluteal Region Flashcards
Gluteus maximus
Origin: Area of ilium posterior to posterior gluteal line, posterior aspect of sacrum & coccyx, sacrotuberous ligament
Insertion: Tubercle iliotibial tract on tibia via ITB, gluteal tuberosity of femur
Action: Hip extension, external rotation, abduction
Innervation: Inferior gluteal nerve
Gluteus Medius
Origin: Area of ilium between anterior & posterior gluteal lines. (deep to glute max)
Insertion: Lateral aspect of greater trochanter of femur
Action: Hip internal rotation, abduction
Innervation: Superior gluteal nerve
Gluteus minimus
Origin: Area of ilium between anterior & inferior gluteal lines. (deep to glute med & max)
Insertion: Anterolateral aspect of greater trochanter
Action: Hip internal rotation, abduction
Innervation: Superior gluteal nerve
Piriformis
Origin: Pelvic surface of sacrum (anterolateral), sacrotuberous ligament
Insertion: Superior border of greater trochanter
Action: Hip external rotation, horizontal abduction (flexed hip)
Innervation: Nerve to piriformis
Gemellus superior & inferior
Origin:
* Superior: Ischial spine
* Inferior: Ischial tuberosity
Insertion: Medial aspect of greater trochanter
Action: Hip external rotation, horizontal abduction
Innervation:
* Superior: Nerve to obturator internus
* Inferior: Nerve to quadratus femoris
Obturator internus
Origin: Internal surface of obturator membrane
Insertion: Medial aspect of greater trochanter
Action: Hip external rotation, horizontal abduction
Innervation: Nerve to obturator internus
Quadratus femoris
Origin: Lateral margin of ischial tuberosity
Insertion: Quadrate tubercle of femur
Action: Hip external rotation
Innervation: Nerve to quadratus femoris
Tensor Fascia Latae
Origin: ASIS, anterior 1/3 of outer lip of iliac crest
Insertion: Tubercle of ITB on tibia, via iliotibial tract
Action: Assists in internal rotation, abduction, flexion @ hip
Innervation: Superior gluteal n.