Vocab
The Ear
Passage of Sound
100
What is a sound?
Vibrations in the air that can be picked up by the ear.
100
What is the function of the ear.
It provides us with sound and balance.
100
Where does the sound go first?
The auditory canal
200
What is a tympanum?
Eardrums.
200
What is the outer ear made of?
Cartilage
200
Where does the sound vibrations go second?
The tympanum
300
What is the hammer, anvil and stirrup?
They are bones in your ear that pick up sound vibrations.
300
What is two main parts of the ear?
The inner and outer ear.
300
Where does the sound vibrations go third?
The hammer, anvil, and stirrup.
400
What is the semicircular canal?
A canal in the ear that monitors your position in relative to gravity.
400
What is the purpose of the outer ear?
To channel noise to the inner ear.
400
Where does the sound vibrations go fourth?
The cochlea
500
What is the cochlea?
Sac filled with fluids that receives vibration from the stirrup and transmits them to the brain.
500
What is the loudest sound a human ear can comprehend in decibels (25 decibel range)?
150
500
Where does the sound vibrations go fifth and how does it get there?
It goes to the brain through cochlear nerve.
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