{HEAD ~ The rib foot} is then scanned or mapped to generate {TAIL ~ the surface profile} of the rib foot 
is scanned to generate
{ HEAD ~ The rib foot } is then scanned or mapped to generate { TAIL ~ the surface profile } of the rib foot
HEAD HEAD HEAD HEAD HEAD HEAD HEAD REL OTH REL OTH OTH REL REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH