The Outer Ear
What is the outer ear called? (2 correct responses)
Pinna/ Auricle (or-ih-kul)
Take sound waves it receives from the outer ear and turn them into vibrations to deliver to the inner ear
What is the cochlea filled with? (2 answers)
liquid and lined cells with thousands of tiny hairs
What are the tiny bones in the ear called? the anvil, the hammer and _________?
The stirrup
In the olden days, to tell if a train was coming, people would do this:
a. Put a cone to their ear
b. Put their ear to the ground
c. Listening for an echo
What is the main job of the outer ear?
To collect all sounds
What are the three tiniest, most delicate bones in your body called? (One word)
Ossicles (ah-sih-kulz)
What happens when vibrations hit the liquid in the cochlea?
The liquid vibrates
A cricket makes chirping sounds by rubbing their hind legs and _____ together
a. Hands
b. Wings
c. Ears
b. Wings
A sound is a form of this:
a. Chemical
b. Energy
c. Liquid
b. Energy
What are produced and travel when noises occur?
Sound waves
What does the malleous (mal-ee-us) mean in latin?
Hammer
What are the vibrations turned into when the sensory hairs move?
Nerve signals
Between humans, elephants and dolphins, which animal can hear the broadest range of frequencies
Dolphins
A device that turns sound waves into images is called:
a. Spectograph
b. Photospect
c. Telegraph
a. Spectograph
After sound waves enter the outer, what do they travel through to make their way to the middle ear?
The ear canal
Does the tube called the Eutachian (yoo-stay-shun) open or close when you yawn or swallow?
The Eustachian tube stays closed UNLESS you yawn or swallow, so it opens when you yawn or swallow
True or False: Once sound becomes nerve signals ONLY THEN can the brain understand what the ears are hearing.
TRUE
This animal makes sheep-like noises:
a. Crocodiles
b. Sea-lions
c. Elephants
b. Sea-lions
Cod fish makes this noise:
a. Chirp
b. Grunt
c. Bubble
b. Grunt
The job of the outer ear canal is to protect the ear, it does this by producing what?
Ear wax
What is the second job of the middle ear?
To help the eardrum handle the pressure
TRUE OR FALSE: All different kinds of sounds make the same patterns of vibrations
FALSE different kinds of sounds will make different patterns of vibrations
When a sound wave hits a wall and bounces back, the sound is called this:
a. Echo
b. Sound-bounce
c. Wall-wave
a. Echo
Elephants and humans use this call to locate relatives far away
Long distance call