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ENT · Otology
Sample itemWhat structure transmits vibration from tympanic membrane to incus?
Original practice item, not a recalled exam question. Nothing here is recorded.
The answer and the reasoning
B. Malleus
The malleus is attached to the tympanic membrane and transfers its vibration to the incus as the first ossicle in the sound-conduction chain.
Option by option
A. Eustachian tube
Eustachian tube equalizes middle-ear pressure.
B. Malleus (correct)
Correct: malleus attaches directly to the tympanic membrane.
C. Stapes
Stapes contacts the oval window as the final ossicle.
D. Cochlea
Cochlea transduces sound rather than serving as an ossicle.
Source note: Original NextPrep sample item — pending expert review. This item is original practice material awaiting independent expert review, so confirm important facts in a standard textbook.
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