Have you ever wondered about...
THE EAR AND HEARING (Series 1)
INTRODUCTION SOUNDS
Sounds are all around you. Some sounds are load. Some sounds are soft. A fire alarm makes a loud sound. A clock ticking makes a
soft sound.
Pretend you are just waking up. What sounds do
you hear? Do you hear a radio? Do you hear water running? Do you hear people talking?
Pretend you are on the way to school. What
sounds do you hear? Look at the picture. How many sounds are there in the picture? Can you think of more sounds?
My Morning Sound Map
THE EARS
Your ears help you to hear. Your ears help you
to hear the teacher talking. Your ears help you to hear cars and trucks in the street. Your ears help you to hear the school bell
ringing.
THE PARTS OF THE EAR
You have two ears. Each of your ears has three parts. They are:
- the outer ear
- the middle ear
- the inner ear
Look at the picture. Can you find all three parts?
THE OUTER EAR
Look at the outer ear. Can you find the pinna (pin'-uh)? Can you find the ear canal? The outer ear stops at the
eardrum. The eardrum divides the outer ear and the middle ear.
THE MIDDLE EAR
Look at the middle ear. Find the three small bones. They are:
- the hammer (or malleus)
(Doctors use the Latin terms [malleus, incus, and stapes] to talk about the
bones in the middle ear.)
- the anvil (or incus)
- the stirrup (or stapes)
The hammer, the anvil, and the stirrup are connected. They are the smallest bones in your body. The middle
ear stops at the oval window. The oval window divides the middle ear and the inner ear.
THE INNER EAR
Look at the inner ear. Can you find the cochlea (coke'-lee-uh)? The cochlea looks like a snail's shell. It is filled
with liquid.
It also has tiny hairs in it. They are called hair cells. Within the cochlea is a nerve. This nerve is called the
auditory nerve.
Can you find the auditory nerve?
HOW YOU HEAR
Clap your hands. You hear the sound of the clap with your ears. The sound moves very fast. Each part of your ear helps you to
hear the sound of the clap.
The pinna gathers the sound and moves it into the ear canal. Then the sound hits the eardrum. The
eardrum moves very
fast. It vibrates.
The small bones in the middle ear move very fast. They vibrate. The oval window moves very fast. It vibrates. The
hair cells in the cochlea move very fast. They vibrate.
Then something very special happens. The hair cells change the clapping sound to a kind of electricity. The
electricity moves up the auditory nerve to your brain. You hear the clapping sound when the electricity gets
to your brain.
Look at the picture. It shows what happens to the clapping sound. It happens very fast.
FILL IN THE BLANKS
Choose the correct answers from the choices below.
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| 3 |
stirrup |
hammer |
|
| cochlea |
liquid |
vibrate |
|
| anvil |
eardrum |
3 |
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1. The ear has _________________ parts.
2. The outer ear stops at the _______________________.
3. The middle ear has ____________ small bones.
4. They are called the _________________, the ______________, and the _____________.
5. The small bones in the middle ear move very fast. They ________________.
6. The _______________________ is shaped like a snail's shell.
7. The cochlea is filled with _________________________________.
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HEARING LOSS
Some people do not hear as well as others. They have a hearing loss. There are many reasons for hearing loss. Some of these
reasons are:
- SicknessSometimes getting measles or mumps can cause hearing loss.
- AccidentsSometimes getting hit on the head can cause hearing loss.
- Loud NoisesSometimes loud noises can cause hearing loss. Listening to loud music, guns shooting, or firecrackers can
cause
hearing loss.
- Inherited Hearing LossSometimes several people in a family have a hearing loss. Sometimes a hearing loss can be
inherited
from a father, a mother, or some other relative in the family.
What should you do if you think you have a hearing loss? Here are two things you can do.
- GO TO A DOCTOR
If your family doctor cannot help, you may visit a special doctor, an ENT (a doctor who takes care of ear, nose, and throat
problems).
-
GO TO AN AUDIOLOGIST FOR A HEARING TEST
The audiologist will test your hearing and tell you what the test shows. The audiologist works closely with the doctor.
WHEN YOU HAVE A HEARING TEST
A hearing test tells how well you can hear loud sounds and soft sounds. A hearing test also tells how well you can hear
high-pitch sounds and low-pitch sounds.
Look at the picture. Find the girl in the picture. What is on her head? They are called earphones. She can hear sounds in the
earphones. She will listen for high-pitch sounds. She will listen for low-pitch sounds. She will listen for loud sounds. She will
listen for soft sounds. When she hears a sound, she will raise her hand.
HELP FOR HEARING LOSS
There are several things which help people who have a hearing loss. Sometimes medicine will help. Sometimes a hearing
aid will help. Sometimes an operation will help. Look at the pictures below. It shows different kinds of hearing
aids.
Even though hearing aids look different they all have the same job: to make sounds as loud
and clear as possible.
Other machines can help people who have a hearing loss. Look at the pictures below. How many machines can you find that help
people who have a hearing loss? How do they help?
| Special machines make it possible for people with a hearing loss to enjoy
television and use telephones more easily. |
 |
 |
With TDDs deaf people can type telephone conversations to other
people. |
| Decoders help people with a hearing loss to read the speakers' words on the
television screen.
|
 |
 |
You may see these symbols on phones in public places. They identify special
phones that make sound louder for users with hearing problems.
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STEPS TO HEARING HEALTH
Keeping your ears
healthy is important. Protecting your hearing is important. Here are
four things you can do to keep your ears healthy and to protect your
hearing.
- BE A NOISE DETECTIVE.
- AVOID LOUD NOISE, LOUD MUSIC, AND LOUD TOYS
- WEAR EAR PLUGS OR EAR PROTECTORS AROUND NOISY MACHINES.
- EAT GOOD FOOD, AVOID JUNK FOOD.
FUN THINGS TO DO
- Make a list of ways to protect your hearing at home and in school.
- Draw a picture about the different ways a person can lose their hearing.
- Write a poem about your favorite sound.
- Write a story about how hearing is part of your everyday life.
- Make a SOUND MAP of the sounds you hear at home, on your way to school, or in your classroom.
FIND THE WORDS
Names of parts of the ear and words about hearing are hidden in the puzzle. Find the twelve words and circle them.
Ear |
Eardrum |
Pinna |
Noise |
Anvil |
Haircells |
Hammer |
Cochlea |
Canal |
Stirrup |
Brain |
Inner Ear |
MORE TO READ
Arthur, Catherine, My Sister's Silent World. Chicago: Children's Press, 1979. (Non-fiction)
Aseltine, Lorraine (et al). I'm Deaf and It's Okay. Albert Whitman & Company, 1986. (Fiction)
Blatchford, Claire. Yes, I Wear a Hearing Aid. New York: Lexington School for the Deaf (Lexington Family Series), 1976.
(Fiction)
Fournier, Dorothy. The Search. Northridge, CA: Joyce Media, Inc. 1982 (Fiction)
Fryer, Judith. How We Hear: The Story of Hearing. Minneapolis, MN: Medical Books for Children Publishing Co., 1961.
(Non-fiction)
Glazzard, Margaret H. Meet Camille & Danielle: They are Special Persons. Lawrence, KS:
H & H Enterprises, Inc., 1978. (Non-fiction)
Litchfield, Ada B. A Button in Her Ear. Chicago: Albert Whitman and Company, 1976. (Fiction)
Litchfield, Ada B. Words in Our Hands. Chicago: Albert Whitman and Company, 1980. (Fiction)
Miller, Kate. Hearing. London: Oxford University Press (Inside and Outside Books), 1972.
(Non-Fiction)
Place, Betty. Chris Gets Ear Tubes. Washington, D.C.: Gallaudet University Press, 1987.
(Fiction)
"Have you ever wondered about . . . The Ear and Hearing?" was developed by the Info to Go (Info to Go) in
cooperation with the American Speech-Language-Hearing Association (ASHA), Rockville, Maryland. For more information about the
"Have you ever wondered about . . .?" series or about deafness, contact:
Info to Go
Gallaudet University
800 Florida Ave. NE
Washington, DC 20002
E-mail: Clearinghouse.Infotogo@gallaudet.edu
Web site:
The Info to Go at Gallaudet University gratefully acknowledges the support of the Coca-Cola
Foundation in making this publication possible.
This publication was adapted by John P. Madison, Ph.D., from the original written by Evelyn Cherow of ASHA. Illustrated by:
Angeline V. Culfogienis
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