The outer ear's primary role in hearing is to

The outer ear's primary role in hearing is to

• A. Collects and directs sound waves
• B. Transduces vibrations into neural signals
• C. Determines pitch
• D. Regulates blood flow in ear

Answer: (A)

Collection and direction of sound waves is the outer ear’s primary role. The pinna and ear canal capture sound energy and funnel it toward the eardrum, shaping and delivering it so that it can be processed by the rest of the system. Transduction into neural signals happens in the inner ear's cochlea, pitch is determined by how the cochlea analyzes frequency, and regulating blood flow isn’t part of hearing. So the best description is that the outer ear collects and directs sound waves.

Collection and direction of sound waves is the outer ear’s primary role. The pinna and ear canal capture sound energy and funnel it toward the eardrum, shaping and delivering it so that it can be processed by the rest of the system. Transduction into neural signals happens in the inner ear's cochlea, pitch is determined by how the cochlea analyzes frequency, and regulating blood flow isn’t part of hearing. So the best description is that the outer ear collects and directs sound waves.