Fill in the blanks and choose the correct option given below.

(i) connects middle ear cavity with the pharynx.

(ii) The fluid filled inner ear is called .

(iii) Membranous labyrinth is surrounded by fluid and it is filled with fluid.

(iv) At the base of the cochlea, the scala vestibule ends at the window, while the scala tympani terminate at the window.

(v) is a structure located on the basilar membrane which contains hair cells

(vi) cell act as auditory receptors.

(vii) A large number of processes called are projected from the apical part of each cell.

(viii) Above the rows of the hair cells is a thin elastic membrane called membrane.

(ix) The vestibular apparatus is composed of three and .

(x) The and are the specific receptors for maintenance of balance of the body and posture.

(xi) The movements of membrane bend the hair cells pressing them against membrane, which result in generation of nerve impulse.