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Inferior gemellus

Other Terms: Gemellus inferior, Inferior gemellus, Musculus gemellus inferior, Muscle jumeau inférieur

Muscle parts

None

Latin name

Musculus gemellus inferior

Latin muscle parts

None

Group

Hip joint muscle – deep hip rotator group

Etymology

The English name of this muscle is the lower 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 inferior comes out of inferus meaning “low or lower.”

Origin

Upper portion of the tuberosity of the ischium.

Insertion

Joins the inferior 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 quadratus femoris (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 inferior

French

Muscle jumeau inférieur

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