Ear
The human ear is the organ responsible for hearing and balance. The ear consists of three parts: the outer, middle, and inner ears.
Outer ear
The outer ear collects external sounds and funnels them through the auditory system. The outer ear is composed of three parts, the pinna (or auricle), the auditory canal, and the eardrum (tympanic membrane).
What are commonly called ears—the two flaplike structures on either side of the head—are actually the pinnas of the outer ear. Pinnas are skin-covered cartilage, not bone, and are therefore flexible.
The auditory canal is a passageway that begins at the...
[The entire page is 1629 words long]
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