Cancellous Bones, the Rib and Creation https://www.britannica.com/science/cancellous-bone…Cancellous bone makes up about 20 percent of the human skeleton, providing structural support and flexibility without the weight of compact bone. It is found in most areas of bone that are not subject to great mechanical stress. It makes up much of the enlarged ends (epiphyses) of the long bones and is the major component of the ribs, the shoulder blades, the flat bones of the skull, and a variety of short, flat bones elsewhere in the skeleton.Cancellous bone is usually surrounded by a shell of compact bone, which provides greater strength and...