Sound
Outer Ear Physiology
Middle Ear Physiology
Inner Ear Physiology
Ear Anomalies
100

Sound can be defined as energy or the transfer that is propagated from one place to another in this type of motion

What is wave like?

100

This outer ear structure has a unique curved shape with grooves and ridges that act as a funnel, collecting sound from all directions, while also filtering background noise and selectively enhancing certain sounds 

What is the pinna?

100

Located at end of the EAM and vibrates in response to sound

What is tympanic membrane?

100

Considered the sensorineural system of hearing

What are the cochlea and cochlear branch of CN VIII? 

100

Absence of pinna

What is anotia?

200

Pattern that is formed from the displacement of air particles

What is vibratory motion?

200

The size and structure of this outer ear structure is important to its function in the transmission of sound energy from the outer ear to the middle ear

What is the external auditory meatus (EAM)?

200

The ossicular chain functions as this.

What is a lever?

200

Movement of the ossicles stimulates this window to compress the perilymph of the scala vestibuli of the inner ear

What is the oval window?

200

An acquired disorder due to trauma to the outer ear

What is cauliflower ear?

300

This is measured as the number of vibratory cycles that occur in a specified unit of time

What is frequency?

300

Created in the first one-third of the EAM

What is cerumen or ear wax?

300

These structures vibrate in response to the eardrum, and the stapes then pushes on the oval window of the inner ear, converting sound waves into fluid waves.

What are the ossicles (incus, stapes, and malleus)

300

These are important for hearing and balance because they bend in response to sound

What are hair cells (stereocilia)?

300

Inflammation of the middle ear (undrained fluid, swollen Eustachian tube)

What is otitis media?

400

Range of loudness that the average human can hear

What is 0 to 140 dB SPL?

400

Prevents water from entering the ear canal and expel dirt and dead skin cells from the epithelial lining of the EAM

What are cilia and cerumen?

400

The process by which the middle ear converts low-pressure sound waves in the air into high-pressure vibrations in the inner ear's fluid

What is transformer action?

400

This process is when the brain interprets and uses sounds sensed by the ear, especially speech sounds, to make sense of the environment

What is auditory processing?

400

Bony tumors in the ear canal

What is osteoma?

500

Frequency is represented by this symbol

What is Hertz (Hz)?

500

Term for when the pinna dampens sounds due to its shape

What is selective enhancement?

500

Serves to equalize the pressure of the middle ear with the atmospheric air pressure

What is Eustachian Tube?

500

This part of the inner ear processes information about body position and acceleration in space

What is the vestibular system?

500

Surgical procedure that allows for pressure equalization in the middle ear 

What is myringotomy?

M
e
n
u