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This three-part ear replica exposes the entire length of
the ear canal and Eustachian tube so that the sound waves entering the ear can be easily
traced and to demonstrate how air pressure on both sides of the eardrum is equalized.
The hammer, anvil, transparent ear drum, and the labyrinth all lift out for
hands-on study. Functions of the 18 hand-numbered primary features are explained in
depth in the accompanying study guide. Overall dimensions are 16 x 11 x 7 inches (41
x 28 x 18cm).
Manufactured in the U.S.A. by Denoyer-Geppert.
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 Giant Student Version Ear
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