Ear Anatomy- Hearing and Balance

Front

What is the function of the vestibular apparatus in the inner ear?

Back

The vestibular apparatus helps maintain balance (equilibrium).

Front

What is the External Acoustic Meatus?

Back

The External Acoustic Meatus, also known as the Auditory Canal, is the passage that leads from the outer ear to the tympanic membrane (eardrum).

Front

What is the Eustachian tube?

Back

The Eustachian tube is a canal that connects the middle ear to the nasopharynx, helping to equalize pressure in the ear.

Front

What are the ossicles?

Back

The ossicles are the three smallest bones in the body (malleus, incus, stapes) that transmit and amplify sound waves from the eardrum to the inner ear.

Front

What are the auditory ossicles?

Back

The auditory ossicles are the malleus, incus, and stapes, which are responsible for conducting sound vibrations to the cochlea.

Front

What is the cochlea?

Back

The cochlea is a spiral-shaped organ in the inner ear that converts sound vibrations into neural signals.

Front

What role do the semicircular canals play in balance?

Back

The semicircular canals detect rotational movements of the head and help maintain balance.

Front

What is the tympanic membrane?

Back

The tympanic membrane, or eardrum, is a thin membrane that vibrates in response to sound waves, transmitting them to the ossicles.

Front

What is the function of the oval window?

Back

The oval window is a membrane-covered opening that transmits sound vibrations from the stapes to the fluid in the cochlea.

Front

What is the role of the vestibulocochlear nerve?

Back

The vestibulocochlear nerve (cranial nerve VIII) transmits sound and balance information from the inner ear to the brain.