The membrane includes {HEAD ~ a bellows portion} for increasing the distance by which the membrane can be deflected in {TAIL ~ response} to the given pressure increase 
The membrane includes { HEAD ~ a bellows portion } for increasing the distance by which the membrane can be deflected in { TAIL ~ response } to the given pressure increase
OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH