RT Book, Section A1 Posner, Glenn D. A2 Posner, Glenn D. A2 Black, Amanda Y. A2 Jones, Griffith A2 El-Chaâr, Darine SR Print(0) ID 1193311502 T1 Obstetric Pelvis T2 Oxorn-Foote Human Labor & Birth, 7e YR 2022 FD 2022 PB McGraw-Hill Education PP New York, NY SN 9781260019414 LK obgyn.mhmedical.com/content.aspx?aid=1193311502 RD 2024/04/25 AB The pelvis is made up of the two innominate bones (which occupy the front and sides) and the sacrum and coccyx (which are behind). The bones articulate through four joints. The sacroiliac joint is the most important, linking the sacrum to the iliac part of the innominate bones. The symphysis of the pubis joins the two pubic bones. The sacrococcygeal joint attaches the sacrum to the coccyx.