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ENT Ear 9e96a835

Which of the following is not a derivative of the middle ear cleft?

A
Semicircular canal
B
Mastoid air cell
C
Tympanic cavity
D
Eustachian tube
High-Yield Explanation
The middle-ear cleft in the temporal bone includesEustachian tubeThe middle ear (tympanic cavity)Aditus which leads posteriorly to the mastoid antrum and air cellsRef: PL Dhingra, Diseases of Ear, Nose & Throat, 7th edition, pg no. 5

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