Life size. Dissectible into 5 parts. Includes separate 2-part Heart with internal detailing of Chambers and Valves. The Sternum and Thymus are removable to reveal the Pericardial Sac and major Pulmonary and Systemic Vessels. The Esophagus, Trachea, and Diaphragm are well represented. With key. Mounted on a durable polymer base. Size: 40 x 26 x 30 cm