In the auditory canal,which one of the following glands is present?

Which of the following senses is impaired if the tectorial membrane is removed from a rabbit?

Arrange the following in the order of reception and transmission of sound wave from the ear drum. Cochlear nerve,External auditory canal,ear drum,stapes,incus,malleus,cochlea.

The fluid found in the semicircular canals of the internal ear of a rabbit is .....

Structures filled with perilymph - $P$
Structures filled with endolymph - $Q$
$I -$ Scala vestibuli,$II -$ Scala tympani,$III -$ Scala media
Select the correct option for $P$ and $Q$.
$P \quad\quad Q$

In the ear of man, the perilymph passes from the middle to the inner ear through