Hip bone
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The hip bone is a large flat bone, constricted in the center and expanded above and below. In some vertebrates it is composed of three parts: the ilium, ischium, and the pubis.
Position of the hip bones (shown in red) on male
Hip bone.Medial view.
Hip bone. Lateral view.
The anterior inferior iliac spine is a bony eminence on the anterior border of the hip bone, or, more precisely, the wing of the ilium.
Hip joint. Lateral view. Anterior inferior iliac spine visible to the left.