< B>Ear, external: There are three sections of the ear. They are the external
ear, the middle ear, and the inner ear. The external ear looks complicated but it
is functionally the simplest part of the ear. It consists of the pinna or auricle
(the visible projecting portion of the ear), the external acoustic meatus (the outside
opening to the ear canal), and the external ear canal that leads to the ear drum.
In sum, there is the pinna, the meatus and the canal. And the external ear has only
to concentrate air vibrations on the ear drum and make the drum vibrate. The external
ear is also called the outer ear.
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