The
human ear is composed of three components.
|
- The first
component: is the “outer” portion which acts as an acoustic chamber that
funnels sounds from the environment. The outer ear begins at the pinna (the part that
holds your glasses) and extends through the ear canal to the eardrum, or tympanic
membrane.ne
|
- The
second component: is the “middle” portion which continues this
propagation of sound energy in a mechanical fashion by changing the movements of the
eardrum into vibrations of a chain of small bones.
|
- The
third component: is the “inner” portion which receives the subtle vibrations and
transforms them into electrical impulses which travel along the auditory nerve and into
the brain. The “outer” and “middle” portions conduct sound to the
nerve, or “inner” ear.
|
