Ключевые слова: abstract, anatomy, animal, background, background pattern, biology, body, bone, bones, brittle, calcium, closeup, cut, design, disease, health, healthy, holes, inside, joint, macro, medical, medicine, microscopic, natural, network, old, pattern, realistic, schematic, science, section, simplified, skeletal system, skeleton, spongy, strong, structure, structures, texture, tissue, weak, weathered, white, wild,