Otoacoustic emissions arise from
Correct Answer: Outer hair cells
Description: OTOACOUSTIC EMISSIONS (OAEs) They are low-intensity sounds produced by outer hair cells of a normal cochlea and can be elicited by a very sensitive microphone placed in the external ear canal and analyzed by a computer. Sound produced by outer hair cells travels in a reverse direction: outer hair cells - basilar membrane - perilymph - oval window - ossicles - tympanic membrane - ear canal. OAEs are present when outer hair cells are healthy and are absent when they are damaged and thus help to test the function of cochlea. They do not disappear in VIIIth nerve pathology as cochlear hair cells are normal. Ref:-Dhingra; pg num:-27
Category:
ENT
Get More
Subject Mock Tests
Practice with over 200,000 questions from various medical subjects and improve your knowledge.
Attempt a mock test nowMock Exam
Take an exam with 100 random questions selected from all subjects to test your knowledge.
Coming SoonGet More
Subject Mock Tests
Try practicing mock tests with over 200,000 questions from various medical subjects.
Attempt a mock test now