brachial plexus
<a rel="nofollow" class="external text" href="https://www.flickr.com/people/183023411@N05">Alice Roberts</a>
CC BY 2.0
<a rel="nofollow" class="external text" href="https://www.flickr.com/photos/183023411@N05/48414059192/">brachial plexus</a>