In {TAIL ~ one embodiment}, {HEAD ~ the fourchette} extends along both the ulnar and radial sides of the anterior and posterior portions 
In
In { TAIL ~ one embodiment } , { HEAD ~ the fourchette } extends along both the ulnar and radial sides of the anterior and posterior portions
REL TAIL TAIL TAIL TAIL TAIL TAIL OTH HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH