State the following difference between the two pinna and tympanum
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Pinna (Auricle)Back to Top
It is a cartilagenous structure that is formed of skin and elastic cartilage. In other animals, it functions as structures that collect sound waves and direct them into the auditory canal. However, in man, the pinnae do not move and are vestigial organs.
The external ear is separated from the middle ear by a membranous structure called the ear drum or the tympanum. The sound waves striking on the tympanum produce vibrations that are transmitted to the inner parts of the ear.
It is a cartilagenous structure that is formed of skin and elastic cartilage. In other animals, it functions as structures that collect sound waves and direct them into the auditory canal. However, in man, the pinnae do not move and are vestigial organs.
The external ear is separated from the middle ear by a membranous structure called the ear drum or the tympanum. The sound waves striking on the tympanum produce vibrations that are transmitted to the inner parts of the ear.
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