EVERYDAY SCIENCE

Detailed explanation-1: -It 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.

Detailed explanation-2: -The ear picks up sound waves and transforms them into electrical signals which travel along nerves to the brain. The signals are interpreted by the brain and connected to other impressions and experiences – the sound is then perceived as loud or quiet, speech, music or a message such as “the phone is ringing.”

Detailed explanation-3: -In addition to protecting the eardrum, the external auditory canal also functions as a natural hearing aid which automatically amplifies low and less penetrating sounds of the human voice.

Detailed explanation-4: -Pinna or auricle. This is the outside part of the ear.

Detailed explanation-5: -The eardrum vibrates from the incoming sound waves and sends these vibrations to three tiny bones in the middle ear. These bones are called the malleus, incus, and stapes.