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Superior gemellus

Other Terms: Gemellus superior, Superior gemellus, Musculus gemellus superior, Muscle jumeau supérieur

Muscle parts

None

Latin name

musculus gemellus superior

Latin muscle parts

None

Group

Hip joint muscle – deep hip rotator group

Etymology

The English name of this muscle is the upper little twin muscle. The word gemellus is Latin for “little twin.” It comes from the Latin geminus meaning “twin” and the diminutive ending –llus or “little.” The Latin word superior comes from the Latin superus meaning “upper.”

Origin

Dorsal surface of the spine of the ischium.

Insertion

Joins the upper edge of the obturator internus tendon to the medial surface of the greater trochanter of the femur.

Action

Lateral rotation of the hip joint; helps abduct a flexed thigh.

Nerve supply

Nerve to obturator internus (L5 and S1)

Blood supply

Blood supply is from the internal iliac artery via the superior and inferior gluteal arteries and the internal pudendal artery.

Latin

Musculus gemellus superior

French

Muscle jumeau supérieur

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