License Image The sacrum is a large curved triangular bone situated like a wedge between the two hip bones. It is formed by the five fused sacral vertebrae. The transverse ridges represent the intervertebral discs of the immature sacrum which have become ossified and fused. The base of the sacrum articulates with the body of […]
sacroiliac joint
Sacroiliac Joint
License Image The sacroiliac joint is the synovial joint between the ilium of the hip bone, and the sacrum. These interconnecting bones fit snugly together, allowing very little movement, and supporting the weight bearing function of the pelvis. In advanced age the cavity between the bones may disappear altogether, becoming fibrous or the bones fused. […]
