About 1/4× life size. Similar to item# 566638 Human Muscular Male except with muscles and muscle groups color coded for easy identification. Muscles on left side are color coded with respect to their innervation through peripheral nerves. The upper extremity color-coding is in accordance with Frick-Leonhardt-Starck, and the lower extremity is coded using an analogous system. Extremities of the right side have muscles color-coded according to innervation by spinal nerves or nerve roots; coding is in accordance with T. von Lanz and Wachsmuth for spinal nerves C5 to Th1 or L2 to S3, respectively. Mounted on a base; removable for study. Size, 33 × 15 × 50 cm.