臀大肌

Key facts

Origin

Gluteal surface of ilium , lumbar fascia , sacrum , sacrotuberous ligament

Insertion

Gluteal tuberosity of the femur and iliotibial tract

Artery

Superior and inferior gluteal arteries

Nerve

Inferior gluteal nerve ( L5 , S1 and S2 nerve roots )

Actions

External rotation and extension of the hip joint , supports the extended knee through the iliotibial tract , chief antigravity muscle in sitting and abduction of the hip

Antagonist

Iliacus , psoas major and psoas minor

Latin

musculus glutaeus maximus

Ta98

A04.7.02.006

via Wikipedia infobox

Wikidata facts

Image

Gluteus maximus 3D.gif