Audiogram and Ear Structures Review

Front

What is an audiogram?

Back

An audiogram is a graphical representation of a person's hearing ability across different frequencies, measured in decibels (dB).

Front

What does air conduction hearing time indicate?

Back

Air conduction hearing time indicates how sound travels through the air and is processed by the outer, middle, and inner ear.

Front

What does bone conduction hearing time indicate?

Back

Bone conduction hearing time indicates how sound travels through the bones of the skull directly to the inner ear, bypassing the outer and middle ear.

Front

What is the significance of comparing air conduction and bone conduction hearing times?

Back

Comparing air conduction and bone conduction helps identify the type of hearing loss: conductive or sensorineural.

Front

What is conductive hearing loss?

Back

Conductive hearing loss occurs when sound is not conducted efficiently through the outer ear canal to the eardrum and the tiny bones of the middle ear.

Front

What is sensorineural hearing loss?

Back

Sensorineural hearing loss is caused by damage to the inner ear or the auditory nerve pathways to the brain.

Front

What is unilateral hearing loss?

Back

Unilateral hearing loss refers to hearing loss in one ear only.

Front

What is the normal range of hearing in decibels (dB)?

Back

The normal range of hearing is from 0 dB to 25 dB.

Front

What is a speech-in-noise test?

Back

A speech-in-noise test evaluates a person's ability to understand speech in the presence of background noise.

Front

What are the main structures of the middle ear?

Back

The main structures of the middle ear include the tympanic membrane (eardrum), ossicles (malleus, incus, stapes), and the Eustachian tube.