Question

Which of these is the main function of the pinna?

• A. It converts sound waves into mechanical vibrations
• B. It converts sound vibrations into sound waves
• C. It converts sound vibrations into electrical impulses
• D. It collects sound waves and channels them into the ear.

Answer 1

The correct option is D

It collects sound waves and channels them into the ear.

The pinna or external ear is shaped in such a way as to channel the sound waves into the inner part of the ear.