The systems and methods advance the electrode to penetrate {TAIL ~ tissue} drawn against {HEAD ~ the carrier} 
The systems and methods advance the electrode to penetrate { TAIL ~ tissue } drawn against { HEAD ~ the carrier }
OTH OTH OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD