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Roy Canine (Dog) Ear Anatomical Model 2 Sided Normal and Infected. This 2-sided, average size, canine ear anatomical model depicts: a normal side with cochlea, auditory ossicles, auditory tube, tympanic bulla, middle ear cavity, tympanic membrane, horizontal canal, vertical canal, auricular cartilage, pinna and temporalis muscle; abnormal side illustrates inflamed inner ear structures, inflammatory exudates in tympanic bulla, ear canal with partial occlusion from cellular hyperplasia, inflammatory exudates and an inflamed (reddened) outer ear. NOTE: No stand is included.