The bones that serve as a place of attachment for the lower limbs, support the weight of the body, and protect internal organs is collectively the girdle.

The bones that serve as a place of attachment for the lower limbs, support the weight of the body, and protect internal organs are collectively known as the pelvic girdle (or pelvis). The pelvic girdle consists of three bones: the ilium, ischium, and pubis. These bones fuse together to form the acetabulum, which is the socket for the hip joint.

The pelvic girdle not only provides a base for the lower limbs but also plays a critical role in bipedal locomotion, supporting the upper body's weight while standing and moving. Additionally, it protects vital internal organs located in the lower abdomen, such as the bladder, reproductive organs, and parts of the digestive system. The structure of the pelvic girdle contributes to its strength and stability, essential for activities like walking, running, and lifting. Thus, it is a crucial component of the human skeletal system.