The torso is characterized by its exchangeable male and female teproductive organs. Like classic torso, all the internal organs are well shown to the very details. The mouth cavity and nasal cavity is open to show the inlet of digestive and respiratory system. The head is open so that the cerebrum with cerebellum can be taken out for close observation. With the removable male and female  eproductive organ, and removable half kidney, the whole urinary system and reproductive system are well depicted. The lung can be completely removed, and the important structares on the inner wall of thoracic cavity like sympathetic column, azygos vein, hemiazygos vein, thoracic duct are well shown.
It is most characterized by its open neck and back, Which provide a full view of the nervous system including the brain and the whole spinal cord. The 12th thoracic vertebra can be taken out for close observation of vertebrae, spinal cord, spinal nerves and 3 layers of maters.
Total 27 parts as follows:cerebrum with cerebellum (1) eyeball (1) lung (4) trachea and bronchi(1) heart (2) esophagus and thoracic aorta (1) liver (1) half of kidnty (1) pancreas, spleen and duednum (1) stomach (2) large and small intestine (1) caecum cove (1) male and female organ (8) 12th thoracic vertebra with spinal cord (1) torso main body (1) Made of High Quality PVC. on a base. Dim: 87*33*26cm