The complete bony ring which forms the pelvis, so named because of its resemblance to a basin, is composed of 2 hip bones, anteriorly and laterally, and the sacrum and the coccyx, posteriorly. The cavity thus created is divided into a smaller inferior portion called the true pelvis and a larger superior one, the false pelvis. The line of separation between these two is the iliopectineal line (Fig. 473). The side walls of the true pelvis are formed largerly by the pubes and the ischia; the side walls of the false pelvis are formed by the ilia.
KeywordsIschial Spine Obturator Foramen Anterior Inferior Iliac Spine Great Sciatic Notch Sacral Hiatus
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