Life-size Sexless Torso 18-Parts , composed of 17 parts, with all of the major organ systems represented. Head is open, exposing one half of the brain. Neck is dissected ventrally to expose muscular, neural, vascular, and glandular structures. Thorax and abdomen are completely open for an unrestricted view of the internal organs and structures. Many additional features are included on the CD-ROM guide. Features: Open head, exposing half of the brain Ventrally dissected neck exposing muscular, neural, vascular, and glandular structures The following parts can be removed and studied: Half of the brain, divided along longitudinal fissure Eye with optic nerve and extraocular muscles Descending thoracic aorta and esophagus Right and left lungs showing bronchial tree and vasculature Heart (2-part) showing atria, ventricles, cardiac valves, and section through ventricular heart wall Stomach showing muscular and vascular structures Pancreas, duodenum, and spleen with vessels and ducts Kidney, urethra, and urinary bladder with prostate (2-part) Half of one kidney, sectioned along frontal plan showing internal structure and vessels Small and large intestine with removable cover over portion of caecum Additional removable parts include: liver with gallbladder, trachea, and cover in the groin area Important structures are numbered and referenced on the accompanying key. Additional features are covered in the Human Torsos CD-ROM Guide included with torso. Mounted on base. 35" x 13" x 9".