The pelvis is a basin-shaped structure that supports the spinal column and protects the abdominal organs. It contains the following:
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Sacrum. A spade-shaped bone that is formed by the fusion of 5 originally separate sacral vertebrae.
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Coccyx (also called the tail bone). Formed by the fusion of 4 originally separate coccygeal bones.
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Three bones:
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Ilium. The broad, flaring portion of the hipbone (the crest of the pelvis).
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Pubis. The lower, posterior part of the hipbone.
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Ischium. One of the bones that helps form the hip.
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