pelvic girdle above and in front of the pelvic brim. It is bounded on either side by the ilium. In the front, it is incomplete, presenting a wide interval between the anterior borders of the ilia, which is filled by the muscles and fascia of the anterior abdominal wall; behind is a deep notch on either side between the ilium and the base of the sacrum that is filled by the thoracolumbar fascia and associated muscles. It is generally considered part of the abdominal cavity (which is why it is sometimes called the false pelvis). Some sources consider this region part of the pelvic cavity, while others reframe the classification by calling the combination the abdominopelvic cavity. The greater pelvis supports the intestines (specifically, the ileum and sigmoid colon), and transmits part of their weight to the anterior wall of the abdomen. The femoral nerve from L2–L4 is in the greater pelvis, but not in the lesser pelvis. Ligaments Arteries internal iliac artery median sacral artery ovarian artery Nerves sacral plexus splanchnic nerves femoral nerve (greater pelvis) Measurements The pelvis can be classified into four main types by measuring the pelvic diameters and conjugates at the pelvic inlet and outlet and as oblique diameters. Additional images References External links Overview at buffalo.edu Diagram at southwest.tn.edu Photo of model (female) – "The Male Pelvis: Articulated bones of male pelvis" Pelvis