Which of the following receptors are specifically responsible for the maintenance of balance of the body and posture?

The vestibular apparatus is composed of $.......$ and $....$

The eighth cranial nerve of a frog connects the brain to the:

In the mammalian ear,the membranous structure that separates the scala vestibuli and the scala media is:

The membranous labyrinth is surrounded by a fluid called

Select the correct sequence for the mechanism of hearing.
$I -$ Sound waves,$II -$ Oval window,$III -$ Hair cells press against the tectorial membrane,$IV -$ Auditory cortex,$V -$ Auditory nerve,$VI -$ Waves in lymph,$VII -$ Tympanic membrane,$VIII -$ Movement in basilar membrane,$IX -$ Ear ossicles,$X -$ Generation of nerve impulses.