As the temple is forced further laterally outwardly from its normally open position, the temple flexes at the thinned wall section with {HEAD ~ the tip} of the finger portion approaching {TAIL ~ the front end} of the temple 
approaching
As the temple is forced further laterally outwardly from its normally open position , the temple flexes at the thinned wall section with { HEAD ~ the tip } of the finger portion approaching { TAIL ~ the front end } of the temple
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH