The pelvic bone, also known as the pelvis, is a large, basin-shaped structure located at the base of the spine. It consists of several bones, including the ilium, ischium, and pubis, which are fused together in adults. The pelvis supports the weight of the upper body when sitting and standing, and it protects the organs in the lower abdomen, such as the bladder and reproductive organs. In addition to its supportive role, the pelvic bone is crucial for movement. It connects the spine to the femurs (thigh bones) through the hip joints, allowing for activities like walking, running, and jumping. The shape and structure of the pelvis also differ between males and females, which is important for childbirth.