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Fenestra ovalis in frogs is the

( A ) Air filled cavity of middle ear
( B ) Opening of auditory capsule which separates inner ear from middle ear
( C ) External opening of tympanum
( D ) Communication between pharynx and middle ear
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1 Answer

(B) is the right answer.

Fenestra Ovalis is the oval window (or vestibular window) is a membrane-covered opening which leads from the middle ear to thevestibule of the inner ear.
answered Apr 4, 2014 by pady_1