What is ear of bullfrog?
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As represented by that of the American bullfrog (Rana catesbeiana), the middle ear apparatus of frogs typically consists of a tympanic membrane connected to the oval window by means of the extrastapes and stapes. The air-filled middle ear cavity communicates with the buccal cavity via the Eustachian tube.
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Explanation:
The dimorphic ear of the bullfrog, Rana catesbeiana, has long been enigmatic. The male's tympanic membrane (TM) area approximates twice the area of the female's; however, similar size differences in the area of the columellar footplate were not observed between the sexes.
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