Buttocks Flashcards
Tensor Fascia Latae origin
Anterolateral superior iliac spine
Tensor Fascia Latae insertion
Iliotibial band (and thus Gerdys tubercle)
Tensor Fascia Latae action
Assist flexion, abduction, and internal rotation of the thigh, tense fascia lata
Tensor Fascia Latae innervation and spinal level
Superior gluteal (L4-S1)
Gluteus Maximus origin
Posterlateral sacrum, gluteal surface of posterior ilium, thoracolumbar fascia, and sarotuberous ligament
Gluteus Maximus insertion
Iliotibial band and gluteal tuberosity
Gluteus Maximus action
Extension, external rotation
Also:
upper fibers- abduction
Lower fibers- assist adduction at hip
Gluteus Maximus innervation and spinal level
Inferior gluteal L5-S2
Gluteus medius origin
Upper/ outer surface of the ilium
Gluteus medius insertion
Greater trochanter (lateral surface)
Gluteus medius action
Abduct thigh
In addition:
anterior part-assist in internal rotation;may assist flexion of thigh
Posterior part- assists external rotation and extension of thigh
Gluteus medius innervation and spinal level
Superior gluteal L4-S1
Gluteus minimus origin
Outer middle surface of the ilium
Gluteus minimus insertion
Greater trochanter (anterolateral surface)
Gluteus minimus action
Abduct thigh
In addition:
Anterior part- assist internal rotation; may assist flexion of thigh
Posterior part- assist external rotation and extension of thigh
Gluteus minimus innervation and spinal level
Superior gluteal L4-S1)