The ear

2. What is the other term for each of the following parts of the ear? Match column A

with column B. Write the letters only.

A                                                                                             B

1. pinna Y. malleus                                                   Y. malleus
2. eardrum W. auditory canal                                 W. auditory canal
3. hammer T. incus                                                 T. incus
4. anvil S. auricle                                                     S. auricle
5. stirrup Z. stapes                                                   Z. stapes
                                                                                  A. tympanic membrane
                                                                                 G. lobule

II. A. What part of the ear is being described? Write the letter of the correct answer.

1. This is the smallest bone in the human body that passes on vibrations from the anvil to the cochlea.

A. pinna B. stirrup C. anvil C. hammer

2. This is a thin membrane that vibrates when sound waves reach it.

T. Eustachian tube V. auditory canal

U. eardrum W. semicircular canals

3. It acts like a funnel. It collects sounds and directs them to the ear canal.

E. pinna F. lobule G. hammer H. anvil

4. This is attached directly to the eardrum. It passes on vibrations from the eardrum to the anvil.

L. pinna M. auditory canal N. hammer O. stirrup

5. It gets the message from the cochlea and sends it to the brain.

A. auditory nerve C. Eustachian tube

B. auditory canal D. optic nerve

6. These are loops of fluid-filled tubes that are attached to the cochlea in the inner ear. They help us maintain our sense of balance.

U. cochlea W. three little bones

V. semicircular canals X. Eustachian tube

7. This is the soft lower part of the external ear. It has large blood supply that helps warm the ear.

H. pinna I. lobule J. anvil K. stirrup

8. This is a tube that connects the middle ear to the back of the nose. It equalizes the pressure between the middle ear and the air pressure in the nose and throat.

S. Eustachian tube U. auditory canal

T. tympanic membrane V. auditory nerve

9. This is a tiny bone that passes vibrations from the hammer to the stirrup.

Q. eardrum R. auditory canal S. cochlea T. anvil

10. It is the tube through which sound travels to the eardrum. Its 2 centimeter length allows it to amplify sounds.

A. ear canal C. cochlea

B. semicircular canal D. Eustachian tube

B. How does sound travel? Trace how sound travels by arranging the different parts

according to the path of the sound waves. Write 1-6.

a. auditory canal

b. three little bones

c. cochlea

d. eardrum

e. pinna

f. auditory nerve