Origin

Spine of ischium

Insertion

Obturator internus tendon

Action(s)

Rotates laterally thigh

Nerve Supply

Nerve to obturator internus (S1, S2, S3)

Arterial Supply

Inferior gluteal artery

Physical Exam

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Clinical Importance

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Disease States

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Discussion

The superior gemellus muscle is a muscle of the human body.

The Gemelli are two small muscular fasciculi, accessories to the tendon of the Obturator internus which is received into a groove between them.

The Gemellus superior, the smaller of the two, arises from the outer surface of the spine of the ischium, blends with the upper part of the tendon of the Obturator internus, and is inserted with it into the medial surface of the greater trochanter. It is sometimes wanting.

Figures

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From Wikipedia:
Superior gemellus

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