Sounds
Sounds travel in...
Waves
The snail shell looking part of the inner ear is called the....? And is responsible for.....?
Cochlea, turning sound waves into electrical signals
The three ossicle bones are known as?
Malleus, Incus, Stapes
Part of the ear that is visible is called the
Pinna
What is the function of earwax in the ear?
To help keep the auditory canal clean, and to muffle very loud and harmful sounds
Sound is a ________ in the air
disturbance
What composes the otic capsule
Vestibule, semicircular canals, and cochlea
What is the smallest of the three occicle bones?
Stapes
The function of the pinna is to....
funnel sounds into the ear
Where does the external auditory canal end?
At the tympanic membrane
Our middle ear is effective at dampening which kind of waves?
The organ of corti is made up of
inner and outer hair cells
Sound waves travel through the auditory canal making the __________ vibrate.
Tympanic membrane
The outer is is important for
Localizing sound
The two main purposes of the middle ear are
to deliver sound vibrations and protect the inner ear from being overdriven by excessively strong vibrations
Which sounds are found at the base of the of the cholera? Which sounds are found at the apex of the cochlea?
high frequency sounds, low frequency sounds
Located under the oval window and stapes
Round Window
The part of the ear that the stirrup hits and amplifies sound is known as the...
Oval window
What is the pinna made out of?
Cartilage covered in skin
The cochlea is _________ organized
Tonotopically
Why is the middle ear inneffective at dampening loud high frequency sounds?
The waves are too fast
The part of the inner ear that is responsible for helping us balance and contains fluid
semicircular canals
Permits equalization of middle ear pressure with atmospheric pressure AND allows for drainage into the nasopharynx
After the sound waves are funneled through your pinna they travel down the....
external auditory canal
Explain how sound goes through the ear
Sound enters the outer ear, goes through the external auditory meatus, tympanic membrane vibrates, malleus, incus, stapes, oval window vibrates, pressure changes to the fluid in the inner ear, translates into an electrical signal, travels along the auditory nerve to brain