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