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The Human Ear (Grade 4)

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The Human Ear

1. 
Write the letter from the diagram (A - L) that represents each structure next to its name.

Ear Diagram

           auditory or Eustachian tube

           cochlea

           cochlear nerve

           external auditory canal

           incus or anvil

           malleus or hammer

           round window

           semicircular canals

           stapes or stirrup

           tympanic cavity

           tympanic membrane or eardrum

           vestibular nerve
2. 
Which of the following is NOT part of the ear?
  1. maxilla
  2. hammer
  3. anvil
  4. stirrup
3. 
The part of the ear that collects the sound is the                        .
  1. ear drum/vibrating part
  2. nerve
  3. brain
  4. outer ear
4. 
Your brain interprets signals from                                    as sounds.
  1. eardrums
  2. three bones in the middle ear
  3. tiny hairs that affect nerve cells
  4. inner ears
5. 
Which of the following parts of the ear helps you the most to maintain you balance and stay upright?
  1. cochlea
  2. eustachian tube
  3. tympanic membrane
  4. semicircular canals
6. 
The                     enable the air pressure to equalize between the middle ear and the outside world.
  1. cochlea
  2. eustachian tubes
  3. tympanic membrane
  4. semicircular canals
7. 
Where are sound waves changed into electrical signals that travel to your brain?
  1. eardrum
  2. hammer
  3. cochlea
  4. stirrup
8. 
The three small bones of the inner ear are called the
  1. cochlear bones.
  2. tympanic bones.
  3. basilar ossicles.
  4. auditory ossicles.
9. 
The outermost part of the ear is called the                .
  1. cochlea
  2. eardrum
  3. pinna
  4. incus

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