Illustrates ear anatomy including right auricle, right tympanic membrane, middle ear, auditory ossicles, membranous labryinth, membranous ampulla, organ of corti, macula of saccule. Also explains and shows how we hear - the physiology of sound. Size is 20" W by 26" H. Charts come in Laminted (PL1.5), Styrene Plastic (PST) and Paper (PU).