The body member includes a cavity on {TAIL ~ its first end} which terminates by an end wall at {HEAD ~ its second end} 
The body member includes a cavity on { TAIL ~ its first end } which terminates by an end wall at { HEAD ~ its second end }
OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD