Chordata: Protochordata to Amphibia · Zoology

Which membrane in the amphibian ear is responsible for receiving sound vibrations from the environment?

  1. Cochlea (inner ear spiral organ)
  2. Tympanic membrane (Tympanum)
  3. Pinna (outer ear flap)
  4. Stapes (middle ear ossicle)
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Correct answer: Tympanic membrane (Tympanum)

Unlike fish, amphibians have an eardrum or tympanic membrane located on the surface of the head. It picks up airborne sound waves and transmits them to the inner ear via a single bone called the columella.

Difficulty: Medium Question 17 of 20

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