Question

what is pinna and what it does?
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Answer 1

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The outer ear is called 'pinna'. It collects the sound from the surroundings. The collected sound passes through the auditory canal. At the end of the auditory canal there is a thin membrane called the ear drum or tympanic membrane.

Answer 2

Answer:

the ear has external , middle and interior portions .the outer ear is known as pinna is made of rigged cartilage made by skin .

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