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b>Ear, outer: There are three sections of the ear.
They are the outer ear, the
middle ear, and the inner ear. The outer 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. The outer ear concentrates air vibrations on the ear
drum and makes
the drum vibrate. The outer ear is also called the external
ear.
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