The following is a list of the steps that occur in the production of an auditory...

The following is a list of the steps that occur in the production of an auditory sensation.

1. The pressure wave distorts the basilar membrane on its way to the round window.

2. Movement of the tympanic membrane causes displacement of the malleus.

3. Displacement of the stereocilia stimulates sensory neurons of the cochlear nerve.

4. Movement of the malleus causes movement of the incus and stapes.

5. Distortion of the basilar membrane forces the hair cells of the organ of Corti toward or away from the

tectorial membrane.

6. Movement of the oval window establishes pressure waves in the perilymph of the vestibular duct.

The proper sequence for these steps is:

A. 2, 4, 1, 6, 5, 3

B. 2, 4, 6, 3, 5, 1

C. 2, 1, 4, 6, 5, 3

D. 2, 4, 6, 1, 5, 3

E. 2, 5, 4, 6, 1, 3

Expert Solution

Option D-2, 4, 6, 1, 5, 3

When sound Waves are apporaching------Pinna directs it into the External Audtiory canal------Sound wave reaches Tympanic Membrane----Vibration of Tympanic membrane-----Since malleus (1st ear ossicle is attached to Tympanic Membrane) this causes displacement of Malleus--------Movement of the malleus causes movement of the incus and stapes ------Since footplate of stapes is attached to Oval window---hence movement of Oval window Occur-----Movement of the oval window establishes pressure waves in the perilymph of the vestibular duct----------This pressure wave moves from Oval window to Round window----During this, The pressure wave distorts the basilar membrane on its way to the round window.-----Vibration of Basilar membrane-----Vibration of Hair cells present in the Basilar membrane against the tectorial Membrane----Displacement of the stereocilia stimulates sensory neurons of the cochlear branch of vestibulocochlear nerve.------Information Reaches auditory cortex in the superior temporal gyrus in the temporal lobe-----Hearing

Basilar membrane is the membrane that separates 2 liquid-filled tubes which run along the coil of the cochlea, the scala media and the scala tympani.

Tectorail membrane is an acellular membrane that cover mechanically-sensitive hairs of the sensory receptor cells .

Sydney Mullin answered 1 year ago

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