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The Human Ear

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The Human Ear Answer Key

Use the diagram of the human ear below to answer questions.
Ear Diagram
Name the structure of the ear represented by each letter on the diagram.

A: malleus or hammer

B: incus or anvil

C: stapes or stirrup

D: semicircular canals

E: vestibular or acoustic nerve

F: cochlear or acoustic nerve

G: cochlea

H: auditory or eustachian tube

I: round window

J: tympanic cavity

K: tympanic membrane or eardrum

L: external auditory meatus/canal
What structure connects the ear to the nasopharynx, or the part of the throat located behind the nose?
Ear Diagram
  1. E
  2. F
  3. H
  4. L
Which part of the ear consists of several fluid-filled tubes arranged almost at right angles to one another?
Ear Diagram
  1. D
  2. E
  3. F
  4. G
Which letter represents the part of the ear covered by a membrane that provides an opening into the inner ear?
Ear Diagram
  1. F
  2. H
  3. I
  4. K
Which letter represents the membrane that divides the outer and middle ear?
Ear Diagram
  1. D
  2. G
  3. I
  4. K
Which letters identify two structures found in the inner ear?
Ear Diagram
  1. B and C
  2. D and G
  3. H and J
  4. K and L
Which letters represent the auditory ossicles?
Ear Diagram
  1. A, B, C
  2. E, F, H
  3. G, J, K
  4. D, I, L
Which statement is true about structure G?
Ear Diagram
  1. It helps maintain dynamic equilibrium or balance.
  2. It is a tube that helps maintain normal pressure in the ear.
  3. It contains the organ of Corti, the sensory organ of hearing.
  4. It is a nerve which brings signals from the inner ear to the brain.
Which statement best describes the function of the part of the ear represented by the letter L?
Ear Diagram
  1. It is where sound is amplified.
  2. It is where sound waves enter.
  3. It is a nerve that carries impulse signals to the brain.
  4. It protects the ear from potentially damaging noises.

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