Water moves from pathway 84 into {HEAD ~ pathway} 88 through {TAIL ~ a connecting, generally perpendicular pathway} 94, generally defined by wall section 96, which extends downward from lower surface 86 to the upper end of wall 92 
Water moves from pathway 84 into { HEAD ~ pathway } 88 through { TAIL ~ a connecting , generally perpendicular pathway } 94 , generally defined by wall section 96 , which extends downward from lower surface 86 to the upper end of wall 92
OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH