Human Ear
The human ear, like that of other mammals, contains sense organs that serve two quite different functions: that of hearing and that of head and eye movements.
Table of Contents
Anatomically, the ear has three distinguishable parts: the outer, middle, and inner ear.
How Human Ear Works?
Different sounds produced in our surroundings are collected by pinna that sends these sounds to the ear drum via the ear canal.
The ear drum starts vibrating back and forth rapidly when the sound waves fall on it. The vibrating eardrum sets the small bone hammer into vibration. The vibrations are passed from the hammer to the second bone anvil, and finally to the third bone stirrup.
The vibrating stirrup strikes on the membrane of the oval window and passes its vibration to the liquid in the cochlea. This produces electrical impulses in nerve cells.
The auditory nerve carries these electrical impulses to the brain.
These electrical impulses are interpreted by the brain as sound and we get a sensation of hearing.
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