Which function is transmission of sound vibrations to the internal ear?

Correct option is B

Ans. (b) Tympanic membrane
Sol. The tympanic membrane (eardrum) vibrates in response to sound waves and transmits these vibrations to the ossicles in the middle ear, eventually reaching the inner ear.
Explanation of each option:
· (a) Auricle – Outer ear that collects sound, but does not transmit it internally.
· (b) Tympanic membrane – Correct. Vibrates and transmits sound to the middle ear.
· (c) Vestibule – Part of the inner ear involved in balance, not sound transmission.
· (d) Eustachian tube – Equalizes pressure between the middle ear and throat, not for sound transmission.