It plays a vital role in medical teaching. It is not only a bridge between theoretical knowledge and clinical practice, but also an effective tool to improve students' clinical skills and anatomical cognition. The following details its specific role in medical teaching：

Through high-precision replication and reduction, the complex structure of bones, joints, muscles and ligaments of the hand can be visually displayed. This three-dimensional display is helpful for medical students to more clearly understand the anatomical characteristics and spatial relations of hand joints, so as to establish accurate spatial imagination ability. Compared to traditional 2D images or text descriptions, it will provide a more intuitive and authentic learning experience.

In medical teaching, it is often used to simulate surgical operation, rehabilitation training and other scenes. Through repeated practice, medical students can be familiar with the anatomical level, surgical approach and operation skills of the hand joint, so as to improve their practical ability. In addition, the hand joint model also allows students to perform multiple repetitive operations, avoiding errors and risks that may occur in real patients, and providing a safe and effective practice platform for medical students.

It can not only be used in practice, but also as an auxiliary tool for case teaching. By simulating different hand diseases or injuries, medical students can learn how to observe, analyze, and diagnose hand problems. Under the guidance of teachers, students can gradually establish the correct clinical thinking mode and diagnosis process, and improve their clinical analysis ability.

In clinical practice, teamwork is an important factor in ensuring surgical success and patient safety. The teaching process of hand joint models often involves multiple people collaborating, such as simulating different roles and responsibilities in a surgical team. Through this form of practice, medical students can feel the working atmosphere in advance, learn to communicate and collaborate effectively with others, and lay a good foundation for future clinical work.

To sum up, the hand joint model plays an irreplaceable role in medical teaching. It can not only help students better understand and master the knowledge of hand anatomy, but also improve students' practical ability, clinical analysis ability and teamwork ability. With the continuous development and innovation of medical education will play a more important role in the future.