The horizontal lands and {HEAD ~ horizontal ribs} extend continuously in a vertical direction from {TAIL ~ the shoulder region} to the base portion 
extend continuously from
The horizontal lands and { HEAD ~ horizontal ribs } extend continuously in a vertical direction from { TAIL ~ the shoulder region } to the base portion
OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD REL REL OTH OTH OTH OTH REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH