The Following Is a List of the Steps That Occur

question 125

Multiple Choice

The following is a list of the steps that occur in the production of an auditory sensation. What is the proper sequence for these steps?
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 spiral organ to vibrate against the tectorial membrane.
6) Movement of the oval window establishes pressure waves in the perilymph of the scala vestibuli.

• 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

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Definitions:

Amygdala

A region of the brain involved in experiencing emotions, particularly fear, and processing emotional memories.

Somatic Nervous System

A subdivision of the peripheral nervous system (PNS); it transmits sensory signals and motor signals back and forth between the central nervous system (CNS) and the skin, muscles, and joints.

Muscles and Joints

Components of the musculoskeletal system, with muscles providing the force to move the body and joints allowing for motion between bones.

Parietal Lobes

Regions of the brain located behind the frontal lobes, involved in processing sensory information and spatial orientation.