The External Ear,which Includes the Auricle (Or Pinna)and External Auditory

question 10

Multiple Choice

The external ear,which includes the auricle (or pinna) and external auditory canal,is composed of cartilage covered with skin.The primary function of the auricle is to:

• A) gather and direct sound waves toward the inner ear.
• B) concentrate and conduct incoming sound waves into the external auditory canal.
• C) collect and amplify incoming sound waves by facilitating tympanic membrane vibration.
• D) facilitate air conduction of sound waves.

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