Question 1

Which structure in the cochlea contains the hair cells responsible for converting sound vibrations into nerve impulses?

Accepted Answer

Spiral organ (Organ of Corti)

Question 2

What fluid fills the scala vestibuli and scala tympani of the cochlea?

Accepted Answer

Perilymph

Question 3

Which membrane separates the scala media (cochlear duct) from the scala vestibuli?

Accepted Answer

Vestibular membrane

Question 4

If the basilar membrane is damaged, which function would be most directly affected?

Accepted Answer

Conversion of mechanical vibrations into electrical signals

Question 5

Which of the following best describes the location of the tectorial membrane in the cochlea?

Accepted Answer

It lies above the hair cells of the spiral organ

Question 6

A patient with sensorineural deafness is most likely to have damage to which structure?

Accepted Answer

Hair cells in the spiral organ

Question 7

Which structure is responsible for transmitting vibrations from the oval window into the cochlea?

Accepted Answer

Scala vestibuli

Question 8

If the round window is damaged and cannot move, what is the most likely consequence?

Accepted Answer

Impaired movement of the basilar membrane

Question 9

Which of the following is the correct sequence for the path of sound vibrations through the cochlea?

Accepted Answer

Oval window → scala vestibuli → basilar membrane → scala tympani → round window

Question 10

Which equation best represents the relationship between frequency ($$f$$), wavelength ($$\lambda$$), and speed of sound ($$v) in $$the cochlear fluids?

Accepted Answer

$$v = f 	imes \lambda$$

Question 11

Which structure in the cochlea is directly responsible for supporting the hair cells?

Accepted Answer

Basilar membrane

Question 12

A mutation that affects the production of endolymph would most directly impact which cochlear structure?

Accepted Answer

Scala media (cochlear duct)

Anatomy and Physiology of the Eye and Ear: Special Senses Study Guide

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