ATI Pathophysiology Practice Exam

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Which of the following is a structure of the inner ear?

Auditory canal

Cochlea

The cochlea is a crucial structure of the inner ear responsible for the process of hearing. This snail-shaped organ contains hair cells that transform sound vibrations into neural signals, allowing the brain to interpret sounds. Within the cochlea, the fluid movement stimulates these hair cells, which send auditory information to the auditory nerve. This makes the cochlea essential for auditory function, distinguishing it clearly as a component of the inner ear.

In contrast, the auditory canal is part of the outer ear, serving as a passage for sound waves to travel to the eardrum. The malleus and incus are both bones located in the middle ear, known as ossicles. They play a critical role in amplifying sound vibrations before they enter the cochlea, but they are not part of the inner ear itself. The distinction between the structures is important for understanding the anatomy and function of the auditory system.

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Malleus

Incus

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