This life size closed back torso is composed of 25 parts that feature the most realistic reproductions of anatomical structures in their most intimate detail. The head is sectioned to expose half the brain. In addition, the neck is dissected to expose muscular, neural, vascular and glandular structures. The thorax and abdomen are completely open, providing an unrestricted view of all internal features. Significant structures are numbered and referenced on the accompanying key. Many additional features are included in the CD-ROM Guide. Separate male and female urogenital systems fit interchngeably into the main portion of the torso. Removable structures include the following: eye with optic nerve and extraocular muscles half of the brain, divided along the longitudinal fissure, showing internal structures and blood vessels rachea descending thoracic aorta and esophagus right and left lungs (2 parts each), showing the bronchial tree and vasculature liver with gallblader half of one kidney sectioned along the frontal plane, showing the internal structure and vessels 2-part heart with clear depiction of atria, ventricle, valves and section of heart wall stomach pancreas, duodenum and spleen with vessels and ducts small and large intestines with removable cover portion of caecum male and female urogenital system (4 parts each) sectioned medially with excellent views of internal structures.