The fourchette may be the primary means proximately securing the cuff portion of {HEAD ~ the anterior portion} to the cuff portion of {TAIL ~ the posterior portion} 
The fourchette may be the primary means proximately securing the cuff portion of { HEAD ~ the anterior portion } to the cuff portion of { TAIL ~ the posterior portion }
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL TAIL