Hip Anatomy

Gluteus Maximus Anatomy: Origin, Insertion, Action, Innervation

Gluteus Maximus Anatomy Study Origin: From a broad area on the posterior surface of the ilium, the posterior gluteal line, the rough area of bone superior and inferior to this line, upward to the iliac crest, the aponeurosis of erector spinae, the dorsal surface of the lower part of the sacrum and the side of…

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Gluteus Medius Anatomy: Origin, Insertion, Action, Innervation

Gluteus Medius Anatomy Study Origin: Outer surface of the ilium, between the iliac crest and the posterior gluteal line above and the anterior gluteal line below Insertion: Posterolateral surface of the greater trochanter of the femur. Action: Abduction of the hip, internal rotation of thigh. Innervation: Superior gluteal nerve L4, 5,  S1) Blood Supply: Superior…

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Gluteus Minimus Anatomy: Origin, Insertion, Action, Innervation

Gluteus Minimus Anatomy Study Origin: Outer surface of the ilium, between the anterior and inferior gluteal lines, and the edge of the greater sciatic notch. Insertion: Anterior surface of the greater trochanter of the femur. Action: Abduction of the thigh,  internal rotation of thigh. Innervation: Superior gluteal nerve L4, 5, S1) Blood Supply: Superior gluteal…

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Piriformis Anatomy: Origin, Insertion, Action, Innervation

Piriformis Anatomy Study Origin: Anterior surfaces of the sacrum by three or four slips off the portions of bone between the foramina of the sacrum, the ilium near the posterior inferior iliac spine, the capsule of the sacro-iliac joint, and occasionally the upper part of the sacrotuberous ligament. Insertion: By a rounded tendon to the…

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