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