{HEAD ~ The electrode} is adapted for orientation in a direction parallel to {TAIL ~ the fibers} of the tissue 
{ HEAD ~ The electrode } is adapted for orientation in a direction parallel to { TAIL ~ the fibers } of the tissue
HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH