MCQ'S SEARCH ENGINE

Custom Search

76.Damage to which of the following structures might produce hair cell loss?

Reactions: 

A.Basilar membrane B.Organ of Corti
C.
Reissner's membraneD.Scala tympani
E.Scala vestibuli

ANS B.


Hearing is the detection of sound, which consists of pressure waves

conducted through air or water. The receptors of the cochlear duct provide us with a sense of hearing

that allows us to detect the quietest whisper and yet remain functional in a crowded, noisy

environment. The organ of Corti contains hair cells from the cochlear branch of the vestibulocochlear

nerve (CN VIII). These cells rest on the basilar membrane (choice A), which separates the scala

tympani (choice D) from the scala media. The hair cells are embedded in the tectorial membrane,

and movement of the basilar membrane below the cells causes the hairs to bend, which generates

action potentials. The tectorial membrane that lies on the hair cells does not form a boundary between

the different scala; the membrane separating the scala media from the scala vestibuli (choice E) is

Reissner's (vestibular) membrane (choice C).

1H

FOR MORE IN DENTISTRY: VISIT

RxDENTISTRY
LOVEHUES
DENTAL MATRIX

2 comments:

drnanda said...

a good question and explanation as well..... but i m wandering if these kind of questions are asked in aipg.....

Dr. Madaan said...

thanx dr nanda ,,,for aipg u can accept anything,,, especially when it comes to basic subjects which are asked in real depth.

CLICK ON "OLDER POSTS" ABOVE FOR MORE................

YOU MAY ALSO LIKE: