The external ear's shape is complex, comprising several distinct features. According to descriptions of normal external ear anatomy, its overall form resembles the letter "C" due to structures like the helix and earlobe. The interior includes a "Y" shape formed by the antihelix and its superior and inferior crura. The central, shell-like area is called the concha. Therefore, there isn't one single name for the entire ear shape, but rather names for its components.
Here's a breakdown:
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Overall Shape: Described as resembling the letter "C".
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Key Components and Their Shapes:
Feature Shape/Description Helix Forms the outer curve of the "C" Earlobe Lower, fleshy part of the "C" Antihelix Forms a "Y" shape inside the "C" Superior Crura Upper part of the "Y" formed by the antihelix Inferior Crura Lower part of the "Y" formed by the antihelix Concha Central, shell-like part; resembles a conch sea shell