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Origin Insertion Action Muscles of the Pelvis

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nimoraja's version from 2015-11-06 16:14

Muscles of the Pelvis

MuscleOriginInsertionAction
IliacusIliac crest and fossa of iliumLesser trochanter and nearby shaft of femurFlex hip
Psoas majorBodies, intervertebral discs of T12 – L5; transverse processes of lumbar vertebraeLesser trochanter and nearby shaft of femurFlex hip
Psoas minor Bodies, intervertebral discs of T12 - L5, transverse processes of lumbar vertebraeLesser trochanter, Fascia over the psoas major and iliacus Flex hip
Gluteus maximusIliac crest to posterior superior spine of ilium; coccyx; posterior lower sacrum; aponeurosis of erector spinaeGluteal tuberosity of femur; lateral condyle of tibia via iliotibial bandExtend
Gluteus mediusLateral ilium between crest and acetabulumGreater trochanter of femurAbduct, medially rotate hip
Gluteus minimusLateral ilium between crest and acetabulumGreater trochanter of femurAbduct, medially rotate hip
PiriformisAnterior surface of sacrum; gluteal surface of iliumGreater trochanter of femurLaterally rotate, flex hip
Gemellus SuperiorOuter surface of the spine of ischiumGreater trochanter of the femur Laterally rotate thigh
Obturator InternusInternal surface of obturator membrane Greater trochanter of the femur Laterally rotate thigh
Gemellus Inferior Ischial tuberosityGreater trochanter of the femurLaterally rotate thigh
Obturator Externus External surface of obturator membrane Greater trochanter of the femur Laterally rotate thigh
Quadratus femorisIschial tuberosity of ischiumIntertrochanteric crest of femurLaterally rotate hip
CoccygeusIschial spine side of the coccyxLower sacrumElevates the pelvic floor
IliococcygeusLevator aniIschial spine, CoccyxElevates the pelvic floor
PubococcygeusPosterior aspect of the superior pubic ramuaCoccyxElevates the pelvic floor
Levator aniPosterior surface of the body of the pubis, ascia of the obturator internusIschial spine, CoccyxElevate the pelvic floor
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