The 85cm three-sex trunk model serves to provide a comprehensive teaching tool integrating male, female and neutral anatomical structures for medical education, nursing training and health education. This model is designed based on the real scale of the human body, with a height of approximately 85 centimeters. It has a clear structure and is easy to disassemble. It can display the interrelationships of major organ systems such as the thoracic cavity, abdominal cavity, and pelvic cavity, including the heart, lungs, liver, stomach, kidneys, bladder, and reproductive organs, directly reflecting the internal structural layout of the human body.

Through the 85cm three-sex trunk model, learners can systematically master the location, shape and functional characteristics of the main organs of the human body, understand the differences between the male and female reproductive systems, and enhance their spatial cognitive ability of the overall anatomical structure. This model is widely applied in medical college teaching, nursing training, first aid teaching and popular science exhibitions. It can not only meet the needs of classroom explanations but also be used for students' group practical operations. Its material is solid, the colors are vivid and the layers are distinct, which helps to enhance learning interest and teaching effectiveness. Overall, the 85cm three-sex trunk model is an important teaching auxiliary device in medical basic education and is of great significance for promoting the understanding and application of anatomical knowledge.