Question

Which of the following correctly represents the hearing path in humans?

• A. sound vibrations > pinna > eardrum > sound amplification > cochlea > electrical signal > brain
• B. sound vibrations > pinna > eardrum > cochlea > sound amplification > electrical signal > brain
• C. sound vibrations > pinna > eardrum > electrical signal > cochlea > sound amplification > brain
• D. sound vibrations > pinna > sound amplification > eardrum > cochlea > electrical signal > brain

Answer 1

The correct option is A

sound vibrations > pinna > eardrum > sound amplification > cochlea > electrical signal > brain

Sound from an external source is collected by the pinna and directed towards the eardrum. Vibrating eardrum transfers the vibrations to the ear ossicles that amplify the sound. Next, the cochlea converts the sound waves into an electrical signal which is then taken to the brain by the auditory nerve for interpretation.