Lateral Rotators of Hip
The lateral rotators are:
1.The superior gemellus
2.Inferior gemellus
3. Obturator externus
4. Obturator internus
5. Quadr...
Superior and Inferior Gemellus
Origin : on the ischium
Insertion : on the medial surface of
the greater trochanter
Both muscles, in addition to
helping r...
Piriformis
Origin : on the anterior surface of
the lateral process of the sacrum
and gluteal surface of the ilium at
the margin of th...
Obturator Externus and Internus
The externus originates : on the external
surface of the obturator membrane and
the margins of obturator foramen (the
hole...
Quadratus Femoris
Rectangular muscle that
originates on the ischial
tuberosity and
inserts
onto
the
intertrochanteric crest.
Lateral rotaters of hip
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Lateral rotaters of hip

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Lateral rotaters of hip

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Lateral rotaters of hip

  1. 1. Lateral Rotators of Hip
  2. 2. The lateral rotators are: 1.The superior gemellus 2.Inferior gemellus 3. Obturator externus 4. Obturator internus 5. Quadratus femoris 6. The piriformis
  3. 3. Superior and Inferior Gemellus
  4. 4. Origin : on the ischium Insertion : on the medial surface of the greater trochanter Both muscles, in addition to helping rotate the hip joint laterally, help to abduct the flexed thigh.
  5. 5. Piriformis
  6. 6. Origin : on the anterior surface of the lateral process of the sacrum and gluteal surface of the ilium at the margin of the greater sciatic notch. Insertion : on the superior border of the greater trochanter.
  7. 7. Obturator Externus and Internus
  8. 8. The externus originates : on the external surface of the obturator membrane and the margins of obturator foramen (the hole created by the pubis and ischium) The internus originates : on the inner surface of the obturator foramen and the surfaces of the surrounding bones. Insertion : onto the posteromedial surface of the greater trochanter.
  9. 9. Quadratus Femoris
  10. 10. Rectangular muscle that originates on the ischial tuberosity and inserts onto the intertrochanteric crest.
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