Typically for a single transistor only one surface of each drain and source region make direct contact to the semiconductor body and {TAIL ~ these surfaces} are on opposite sides of a channel region of {HEAD ~ each transistor} 
Typically for a single transistor only one surface of each drain and source region make direct contact to the semiconductor body and { TAIL ~ these surfaces } are on opposite sides of a channel region of { HEAD ~ each transistor }
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 OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD