Gluteus medius
The gluteus medius and nearby muscles
Muscles of the gluteal and posterior femoral regions with origin and insertion of gluteus medius muscle labeled
Gray's	subject #128 474
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

The gluteus medius, one of the three gluteal muscles, is a broad, thick, radiating muscle, situated on the outer surface of the pelvis. Image File history File links Posterior_Hip_Muscles_3. ... Image File history File links Size of this preview: 220 × 598 pixelsFull resolution (368 × 1000 pixels, file size: 188 KB, MIME type: image/png) File historyClick on a date/time to view the file as it appeared at that time. ... A typical adult human skeleton consists of the following 206 bones depending on age, though this number does vary owing to a variety of anatomical variations; for example, a small portion of the human population have an extra rib, or an extra lumbar vertebra. ... The ilium of the pelvis is divisible into two parts, the body and the ala; the separation is indicated on the internal surface by a curved line, the arcuate line, and on the external surface by the margin of the acetabulum. ... The gluteus maximus is the largest of the gluteus muscles which are located in the buttock. ... A typical adult human skeleton consists of the following 206 bones depending on age, though this number does vary owing to a variety of anatomical variations; for example, a small portion of the human population have an extra rib, or an extra lumbar vertebra. ... Bones of the Hip In anatomy, the hip is the bony projection of the femur, known as the greater trochanter, and the overlying muscle and fat. ... The femur or thigh bone is the longest, most voluminous, and strongest bone of the mammalian bodies. ... For other uses, see Artery (disambiguation). ... The superior gluteal artery (gluteal artery) is the largest branch of the hypogastric, and appears to be the continuation of the posterior division of that vessel. ... List of human nerves External links List of nerves This is an incomplete list, which may never be able to satisfy certain standards for completeness. ... The superior gluteal nerve is a nerve that originates in the pelvis which supplies the gluteus medius, the gluteus minimus, and the tensor fasciae latae muscles. ... Look up kinesiology in Wiktionary, the free dictionary. ... In sciences dealing with the anatomy of animals, precise anatomical terms of location are necessary for a variety of reasons. ... Bones of the Hip In anatomy, the hip is the bony projection of the femur, known as the greater trochanter, and the overlying muscle and fat. ... In sciences dealing with the anatomy of animals, precise anatomical terms of location are necessary for a variety of reasons. ... Internal rotation (or medial rotation) is rotation towards the center of the body. ... In humans the thigh is the area between the pelvis and buttocks and the knee. ... An antagonist is a kind of muscle that acts in opposition to the movement generated by the agonist and is responsible for returning a limb to its initial position. ... The Lateral rotator group are a group of muscles of the hip consisting of the externus obturator, the internus obturator, the piriformis, the superior gemellus, the inferior gemellus, and the quadratus femoris. ... Gluteus maximus The gluteal muscles are the three muscles that make up the human buttocks. ... The pelvis (pl. ...

Its posterior third is covered by the gluteus maximus, its anterior two-thirds by the gluteal aponeurosis, which separates it from the superficial fascia and integument. The gluteus maximus is the largest of the gluteus muscles which are located in the buttock. ... The Gluteal aponeurosis is a fibrous membrane that lies between the iliac crest and the superior border of the gluteus maximus. ... Fascia, pronounced , is specialized connective tissue layer which surrounds muscles, bones, and joints, providing support, protection and giving structure to the body. ...

Relations

A bursa separates the tendon of the muscle from the surface of the trochanter over which it glides. Bursae visible top right and bottom right A bursa (plural bursae or bursas; Latin: Bursa synovialis) is a small fluid-filled sac located at the point where a muscle or tendon slides across bone. ...

Origin and insertion

It arises 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 ilium of the pelvis is divisible into two parts, the body and the ala; the separation is indicated on the internal surface by a curved line, the arcuate line, and on the external surface by the margin of the acetabulum. ... Human male pelvis, viewed from front Human female pelvis, viewed from front The pelvis is the bony structure located at the base of the spine (properly known as the caudal end). ... The posterior gluteal line (superior curved line), the shortest of the three gluteal lines, begins at the crest, about 5 cm. ... The anterior gluteal line (middle curved line), the longest of the three gluteal lines, begins at the crest, about 4 cm. ... The Gluteal aponeurosis is a fibrous membrane that lies between the iliac crest and the superior border of the gluteus maximus. ...

The fibers converge to a strong flattened tendon, which is inserted into the oblique ridge which runs downward and forward on the lateral surface of the greater trochanter. For other uses, see Tendon (disambiguation). ... Bones of the Hip In anatomy, the hip is the bony projection of the femur, known as the greater trochanter, and the overlying muscle and fat. ...

Action

The Glutæi medius and minimus abduct the thigh when the limb is extended but are principally called into action in supporting the body on one limb, in conjunction with the Tensor fasciæ latæ. The tensor fasciae latae is a muscle of the thigh. ...

Their anterior fibers, by drawing the greater trochanter forward, rotate the thigh inward, in which action they are also assisted by the Tensor fasciæ latæ. When the hip is flexed to ninety degrees however the glutæi medius aids in rotating the thigh outwards.

Variations

The posterior border may be more or less closely united to the piriformis, or some of the fibers end on its tendon. The piriformis (from Latin piriformis = pear shaped) is a muscle in the gluteal region of the lower limb. ...

The posterior fibres of gluteus medius contract to produce hip extension, lateral rotation and abduction. During gait, the posterior fibres help to decelerate internal rotation of the femur at the end of swing phase.

Additional images

Right hip bone. External surface. Image File history File links Download high-resolution version (793x911, 133 KB) Source Originally from en. ...	Right femur. Posterior surface. Image File history File links Download high-resolution version (476x1270, 68 KB) Source Originally from en. ...	Structures surrounding right hip-joint. Image File history File links Gray344. ...	The arteries of the gluteal and posterior femoral regions. Image File history File links Download high-resolution version (461x1000, 243 KB) File links The following pages on the English Wikipedia link to this file (pages on other projects are not listed): Wikipedia:Grays Anatomy images with missing articles 11 Gluteus maximus muscle Gluteus medius muscle Gluteus minimus muscle...
Nerves of the right lower extremity Posterior view. Image File history File links Download high resolution version (344x1000, 115 KB) Summary Licensing File links The following pages link to this file: Sciatic nerve Wikipedia:Grays Anatomy images with missing articles 17 Tibial nerve Common peroneal nerve Femoral nerve List of images in Grays Anatomy: IX. Neurology...	Surface anatomy of the back. Image File history File links Download high-resolution version (504x700, 119 KB) Summary Licensing File links The following pages on the English Wikipedia link to this file (pages on other projects are not listed): Wikipedia:Grays Anatomy images with missing articles 25 Teres major muscle List of images in...

See also

• Trendelenburg gait

The Trendelenberg gait is an abnormal gait caused by weakness of the abductor muscles of the lower limb, gluteus medius and gluteus minimus. ...

External links

• -200933297 at GPnotebook
• LUC glmd
• SUNY Labs 13:st-0404
• Cross section at UV pelvis/pelvis-e12-15

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