The Ear

Front

What is the function of the round window in the ear?

Back

The round window allows for the displacement of fluid in the cochlea, enabling the transmission of sound waves.

Front

List the ossicles in order from the eardrum to the inner ear.

Back

The proper order of ossicles is: malleus (hammer), incus (anvil), stapes (stirrup).

Front

What is the role of the pinna in the auditory system?

Back

The pinna collects sound waves and directs them into the ear canal.

Front

What is the osseous labyrinth?

Back

The osseous labyrinth is a bony structure in the inner ear that houses the cochlea, vestibule, and semicircular canals.

Front

What are the three main parts of the ear?

Back

The three main parts of the ear are the outer ear, middle ear, and inner ear.

Front

What is the function of the cochlea?

Back

The cochlea converts sound vibrations into electrical signals that are sent to the brain.

Front

What is the role of the eustachian tube?

Back

The eustachian tube equalizes pressure between the middle ear and the atmosphere.

Front

What is the difference between the malleus, incus, and stapes?

Back

The malleus (hammer) is attached to the eardrum, the incus (anvil) connects the malleus to the stapes (stirrup), which is connected to the oval window of the cochlea.

Front

How does sound travel through the ear?

Back

Sound travels through the ear by entering the ear canal, vibrating the eardrum, and then being transmitted through the ossicles to the cochlea.

Front

What is the function of the semicircular canals?

Back

The semicircular canals are responsible for maintaining balance and spatial orientation.