Normal Anatomy  
Intoduction 1

Intoduction 1

Description : The outer ear, also called the pinna or auricle, is a flattened, funnel-shaped appendage composed of cartilage and covered by skin. In humans, the auricle has rudimentary functions in terms of sound amplification and sound localization. These acoustic functions are much more pronounced in other mammals (e.g., dogs or bats), as demonstrated by the relatively greater size, projection, and musculature of the auricle in these species. Apart from its auditory role, the folds or convolutions of the auricle may also, to some extent, shield the external auditory canal from foreign objects or insects.

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