To understand how one hears, it is essential to understand the anatomy of ear. Commonly, the ear is viewed flap like structure found on the sides of the head but the ear is much more than that.

Ear refers to the entire peripheral auditory system which involves everything from flap like structure to the intricate structures of the inner ear, located deep in the skull, and the nerve connecting it to the brain.

The peripheral auditory system consist of three major subdivisions refeered to external ,middle and internal ears more populary known as outer,middle and inner ears respectively.

The outer ear,collects the sound and directs it to the more internal parts. The middle ear is a cavity and its major contents are three small bones known as the ossicular chain. The external and middle parts of the ear together are frequently referred to as the conducting apparatus,because they provide the means by which sound energy is
transformed into mechanical vibration and thereby,conducted to the inner ear.the inner ear ,which contains the sensory or end organ of hearing,has the task of converting this energy into effective stimulus for the end organ.the final product of end organ function is the initiation of a message to the brain signaling the presence of the sound and
providing detailed information about it. Incidentally,the inner ear also incudes the end organs of balance ,that is ,the peripheral vestibular system.