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ENT Ear 41167d62

At which location along the basilar membrane are the highest-frequency sounds detected?

A
Nearest the oval window
B
Fahest from the oval window, near the helicotrema
C
Uniformly along the basilar membrane
D
At the midpoint of the membrane
High-Yield Explanation
The basilar membraneis widest (0.42-0.65 mm) and least stiff at the apex of the cochlea, and narrowest (0.08-0.16 mm) and stiffest at the base (near the round and oval windows). High-frequency soundslocalize near the base of the cochlea, while low-frequency sounds localize near the apex. Ref otolaryngology dhingra 3/e p34

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