Negative pressure is applied through {TAIL ~ a suction port} on the carrier near the electrode, to draw {HEAD ~ tissue} in the tissue region inward against the carrier 
Negative pressure is applied through { TAIL ~ a suction port } on the carrier near the electrode , to draw { HEAD ~ tissue } in the tissue region inward against the carrier
OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH OTH