Which one equalizes air pressure on both sides of tympanic membrane?
সঠিক উত্তরঃ
C.
Eustachian canal
Explanation: Remember: Pinna – collects and centralizes sound waves and channels them to external auditory meatus.
Ear ossicles – channels sound waves from tympanic membrane of outer ear to perilymph inside inner ear.
[Gazi Azmal Sir: Edition-2022, Page-343]