On this day, 34 years ago, on November 3, 1991 (September 27, 1991 in the lunar calendar), my country's human specimen exhibition hall was completed. In early November 1991, the internationally advanced "Human Specimen Exhibition Hall" was built at the First Military Medical University of the People's Liberation Army. The museum has about 1000 exquisite and high-quality specimens, including bones, joints, muscles, internal organs, blood vessels, lymph vessels, brain and spinal cord, nerves and other parts of the human body. In addition, there are complete sets of human cross-section specimens and unique cast specimens of various channels. Various channels in the human body, such as arteries, veins, trachea, bronchus, biliary tract, etc., are cast with different color casting agents, and the various channels in the organs are clearly recognizable and clear at a glance, like exquisitely carved art treasures.