Descripción

Origin: Gluteal surface of ilium, under gluteus maximus

Insertion: Greater trochanter of the femur

Artery: Superior gluteal artery

Nerve: Superior gluteal nerve (L4, L5, S1 nerve roots)

Action: Abduction of the hip; preventing adduction of the hip. Medial rotation of thigh.

Antagonist: Lateral rotator group

Description:
The Glutaeus medius is a broad, thick, radiating muscle, situated on the outer surface of the pelvis. Its posterior third is covered by the Glutaeus maximus, its anterior two-thirds by the gluteal aponeurosis, which separates it from the superficial fascia and integument. Itarises from the outer surface of the ilium between the iliac crest and posterior gluteal line above, and the anterior gluteal line below; it also arises from the gluteal aponeurosis covering its outer surface. The fibers converge to a strong flattened tendon, which isinserted into the oblique ridge which runs downward and forward on the lateral surface of the greater trochanter. A bursa separates the tendon of the muscle from the surface of the trochanter over which it glides.
Variations.—The posterior border may be more or less closely united to the Piriformis, or some of the fibers end on its tendon.


This definition incorporates text from a public domain edition of Gray's Anatomy (20th U.S. edition of Gray's Anatomy of the Human Body, published in 1918 – from http://www.bartleby.com/107/).

Imágenes

Descargar e-Anatomy

Usuarios de móviles y tablets, pueden descargar e-Anatomy en el AppStore o GooglePlay.

e-Anatomy en la Appstore e-Anatomy en la Googleplay