Question

Which of the following is the function of pinna?

• A. Filtering the waste particles.
• B. Protects the skin from bacteria.
• C. Prevents the insects from entering.
• D. Directs the sound waves.

Answer 1

The correct option is D Directs the sound waves.

Pinna is a portion of the outer ear. It collects the incoming sound waves and directs them to the eardrum. The brain converts these sound waves to recognisable sounds.