This labelled graphic shows the anterior and posterior <a href="https://en.wikipedia.org/wiki/Triangles_of_the_neck" class="extiw" title="en:Triangles of the neck">triangles of the neck</a>
Olek Remesz (wiki-pl: <a href="https://pl.wikipedia.org/wiki/Wikipedysta:Orem" class="extiw" title="pl:Wikipedysta:Orem">Orem</a>, commons: <a href="//commons.wikimedia.org/wiki/User:Orem" title="User:Orem">Orem</a>) Modified by user:madhero88
CC BY 3.0
original image <a href="//commons.wikimedia.org/wiki/File:Musculi_coli_base.svg" title="File:Musculi coli base.svg">File:Musculi coli base.svg</a>