Tympanum (anatomy)

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For other uses, see Tympanum (disambiguation).
A circular tympanum near the eye of a male North American bullfrog.

The tympanum is an external hearing structure in animals such as frogs, toads, insects, and mammals, to name a few.[1]


In frogs and toads, it is located just behind the eye. It does not actually process sound waves; it simply transmits them to the amphibian's inner ear, which is protected from water and other foreign objects.

See also[edit]


  1. ^ Phil Bowles. "Glossary". The Online Field Guide. Retrieved March 8, 2012.