Outer Ear
Middle Ear
Inner Ear
Sound Perception
Miscellaneous
100

The ear duct that carries sound

 ear canal

100

The name of the 3 bones in the middle ear

ossicles

100
A conch like structure responsible for hearing 

Cochlea 

100

Three requirements for sound

vibrating bodies, elastic medium, receptive organ

100

What is another name for hammer

Malleus

200

the 3rd part of the outer ear

tympanic membrane

200
What does the middle ear begin with?
Eardrum
200
Two main parts of the inner ear
Cochlea and semicircular canal
200

a normal conversation has a decibel of 

60

200

The speed of sound is 

340 meter per second


300

produced by the ear canal for protection

cerumen

300
What are the 3 bones in the middle ear
Hammer, Anvil and Stirrup
300

What shape are semicircular canals?

Semicircular

300

Frequency of sound is called 

Pitch

300

Functions of ear?

- receiving sound - locating source of sound - balance

400

What is pinna? 

collect sound waves

400

a tube that connects to the nose to maintain pressure

Eustachian tube

400

What is the purpose of semicircular canal?

Maintain balance

400

A reflected sound is called

Echoes

400

Sounds below 20 Hz are called

infrasound

500

another name for the pinna

auricle or ear lobe

500

What is the purpose of the middle ear's bones?

As sound waves hit the eardrum, it moves back and forth causing the ossicles to move. As a result, the sound wave is changed to mechanical vibrations to be carried into the inner ear

500
Explain how sound travels through the inner ear.
1)Vibration from middle ear bones moves cochlea's fluids 2)After, depending on the pitch of the sound, certain tiny hair cells are stimulated. 3)Signals from these hair cells change into nerve impulses. 4)Nerve impulses end in the hearing part of the brain, which then interprets the sound.
500

our audible range is best at 

3000 Hertz

500

Sounds above 20,000 Hz is called

ultrasounds

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