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The buttocks are formed by the masses of the gluteal muscles or "glutes" (the gluteus maximus muscle and the gluteus medius muscle) superimposed by a layer of fat.The superior aspect of the buttock ends at the iliac crest, and the lower aspect is outlined by the horizontal gluteal crease.
The gluteus maximus arises from the posterior gluteal line of the inner upper ilium, and the rough portion of bone including the crest, immediately above and behind it; from the posterior surface of the lower part of the sacrum and the side of the coccyx; from the aponeurosis of the erector spinae (lumbodorsal fascia), the sacrotuberous ligament, and the fascia covering the gluteus medius.
The lower part of the muscle also acts as an adductor and external rotator of the limb. The upper fibers act as abductors of the hip joints. The upper fibers act as abductors of the hip joints. The gluteus maximus is a tensor of the fascia lata , and by its connection with the iliotibial band steadies the femur on the articular surfaces of the ...
The anterior gluteal line is the middle curved gluteal line on the hip bone. It is the longest of the three gluteal lines, begins at the iliac crest, about 4 cm. behind its anterior extremity, and, taking a curved direction downward and backward, ends at the upper part of the greater sciatic notch.
Fitness experts and personal trainers explain the correct form for doing a glute bridge and explain how different variations work different muscle groups.
It is composed of 270 bones at the time of birth, [2] but later decreases to 206: 80 bones in the axial skeleton and 126 bones in the appendicular skeleton. 172 of 206 bones are part of a pair and the remaining 34 are unpaired. [3] Many small accessory bones, such as sesamoid bones, are not included in this.
These 25 glutes exercises and butt-building workouts will help increase glute muscle, strength, and size (and get more explosive athleticism, too).
The gluteal muscles include the gluteus maximus, gluteus medius, gluteus minimus, and tensor fasciae latae.They cover the lateral surface of the ilium.The gluteus maximus, which forms most of the muscle of the buttocks, originates primarily on the ilium and sacrum and inserts on the gluteal tuberosity of the femur as well as the iliotibial tract, a tract of strong fibrous tissue that runs ...