The human skeletal model is a teaching tool used in biology education to showcase the detailed structure of the human skeletal system. This model is made of PVC material and simulates the adult skeletal system, which is divided into skull, trunk bones, and limb bones. In biology teaching, human skeletal models can help students intuitively understand the names, positions, and connection methods of bones, and learn the functions of the skeletal system such as support, protection, and movement. By observing the model, students can master knowledge of human anatomy and understand the coordinated work of bones, muscles, and joints. In addition, the split design of the model allows students to explore the internal structure of bones.