Question

Match the following columns and select the correct option.

	Column-I		Column-II
(a)	Macula	(i)	Filled with endolymph
(b)	Organ of Corti	(ii)	Attached to the tympanic membrane
(c)	Malleus	(iii)	Saccule and Utricle
(d)	Scala media	(iv)	Contain hair cells that act as auditory receptors

• A. (a) (b) (c) (d)
  (iii) (iv) (ii) (i)
• B. (a) (b) (c) (d)
  (i) (iv) (ii) (iii)
• C. (a) (b) (c) (d)
  (iv) (iii) (ii) (i)
• D. (a) (b) (c) (d)
  (iii) (iv) (i) (ii)

Answer 1

The correct option is A (a) (b) (c) (d)

(iii) (iv) (ii) (i)
The crista and macula are the specific receptors of the vestibular apparatus responsible for maintenance of balance of the body and posture.
Scala vestibuli and scala tympani are filled with perilymph while scala media is filled with endolymph. Hair cells in the organ of Corti act as auditory receptors because they receive stimuli and in turn generate impulse.