title: The embedding of ossicular chain specimens in plastic.
abstract: The following objects were specifically designed for teaching material to the medical students. Dried human auditory ossicles were bleached in 30% hydrogen peroxide solution and then, embedded in a good quality plastic. The plastic mass was shaped into a ball 5 cm in diameter, and the surface of which was polished with a good finish. The merits of the objects may be listed as follows; 1) A permenant preservation of the objects is possible because they are embedded in heat- and chemical-resistant material. 2) The objects are handy for use in the lecture room and easily observed by the students because of the magnifying effect of the plastic covering.
mesh_terms: D000715:Anatomy / Q000193:education; D001296:Audiovisual Aids; D004429:Ear Ossicles / Q000033:anatomy & histology*; D004501:Education, Medical; D006801:Humans; D010968:Plasticizers; D010969:Plastics
chemical_list: D010968:Plasticizers; D010969:Plastics