In human ear, sound vibration makes ___________ vibrate.

In the human ear, sound vibration makes the eardrum vibrate. The outer ear collects sound waves and channels them into the ear canal (external auditory meatus), where the sound is amplified. The sound waves then travel toward a flexible, oval membrane at the end of the ear canal called the eardrum, or tympanic membrane. Sound waves cause the eardrum to vibrate.