published on: 2011-06-22 22:26:19
thatguywiththehair: Heart with pacemaker This is very cool
heartanatomyy.tumblr.com/post/6804220314/
heartanatomyy.tumblr.com/post/6804973650/
heartanatomyy.tumblr.com/post/6805013740/
fuckyeahmedicalshit: Open-Heart Surgery (by MemPics)
heartanatomyy.tumblr.com/post/6809817441/