{HEAD ~ The vacuum} anchors {TAIL ~ the surrounding tissue} and mediates against the “tenting” of tissue during electrode penetration 
anchors
{ HEAD ~ The vacuum } anchors { TAIL ~ the surrounding tissue } and mediates against the “ tenting ” of tissue during electrode penetration
HEAD HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH