耳の構造
<ul><li><a href="//commons.wikimedia.org/wiki/File:Anatomy_of_the_Human_Ear.svg" title="File:Anatomy of the Human Ear.svg">File:Anatomy of the Human Ear.svg</a>: Chittka L, Brockmann</li>
<li>derivative work <a href="//commons.wikimedia.org/wiki/User:Nesnad" title="User:Nesnad">Nesnad</a></li></ul>
CC BY-SA 3.0
<ul><li><a href="//commons.wikimedia.org/wiki/File:Anatomy_of_the_Human_Ear.svg" title="File:Anatomy of the Human Ear.svg">File:Anatomy of the Human Ear.svg</a></li></ul>