Each cell is supplied by {HEAD ~ an inlet port} through which fluid, in the case of a hydraulic system, or gas, in the case of a pneumatic system, is introduced into {TAIL ~ the cell} 
Each cell is supplied by { HEAD ~ an inlet port } through which fluid , in the case of a hydraulic system , or gas , in the case of a pneumatic system , is introduced into { TAIL ~ the cell }
OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL