part of the endocrine system
<ul><li><a href="//commons.wikimedia.org/wiki/File:Endocrine_miscelaneous_en.svg" title="File:Endocrine miscelaneous en.svg">Endocrine_miscelaneous_en.svg</a>: <a href="//commons.wikimedia.org/wiki/User:LadyofHats" title="User:LadyofHats">LadyofHats</a></li>
<li>derivative work: <a href="//commons.wikimedia.org/wiki/User:M.Komorniczak" title="User:M.Komorniczak"><font color="#D25D8C"><b>M</b></font><b>•<font color="#6BC3D6">Komorniczak</font></b></a><a href="//commons.wikimedia.org/wiki/User_talk:M.Komorniczak" title="User talk:M.Komorniczak"><sup> -talk-</sup></a></li></ul>
CC BY-SA 3.0
<ul><li><a href="//commons.wikimedia.org/wiki/File:Endocrine_miscelaneous_en.svg" title="File:Endocrine miscelaneous en.svg">Endocrine_miscelaneous_en.svg</a></li></ul>