However, a variation could be pointed out in certain people where this artery tunnels through the deltoid rather then around it. If any with the deltoid muscles are hurt, this could potentially cause agony, spasms, altered feeling, or lack of blood supply. The posterior deltoid has spinal fibers due to http://usd-to-cad50504.blog4youth.com/13412999/head-and-shoulders-pattern-no-further-a-mystery