The ear ossicles increase the efficiency of transmission of sound waves to the inner ear. An __________________ (G) connects the middle ear cavity with the pharynx. The _____________________ helps in equalising the pressures on either sides of the ear drum. The coiled portion of the labyrinth is called _____________ (F).

Question

( a ) Eustachian tube; middle ear cavity; cochlea
( b ) Eustachian tube; Eustachian tube; cochlea
( c ) internal auditory canal; Eustachian tube; cochlea
( d ) internal auditory canal; middle ear cavity; vestibule