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Ala of ilium

Other Terms: Wing of ilium, Ilium ala, Ala ossis ilii, Aile de l'ilium

Description

This is the large, flat, wing-like portion of the ilium. It presents two surfaces and three margins. The surfaces are the external or gluteal and internal or sacropelvic. The margins are the superiorly arched iliac crest, the anterior margin, and posterior margin. This portion of the ilium provides attachment sites form many muscles.

Etymology

Ala is Latin for wing.

Latin

Ala ossis ilii

French

Aile de l'ilium

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