Arrange the following structures in the order in which they would vibrate as a result of the tympanic membrane vibrating. (1)oval window
(2)vestibular membrane and endolymph
(3)ossicles
(4)basilar membrane
(5)perilymph
A)3,5,2,4,1
B)1,2,5,3,4
C)1,2,3,4,5
D)3,1,5,2,4
E)3,2,4,5,1

Question

Quizplus · Accepted Answer

The tympanic membrane vibrates the malleus, incus, and stapes (the ossicles) first (3), which then vibrates the oval window (1) and introduces vibrations into the perilymph (5). These vibrations then move through the cochlea and cause the vestibular membrane and endolymph (2) to vibrate, which in turn causes the basilar membrane (4) to vibrate. Therefore, the correct order is 3, 1, 5, 2, 4. Choice D matches this order.

Arrange the Following Structures in the Order in Which They