The membrane may be broken through {HEAD ~ an activator} on the closure, such as a depressible member or a rotatable carrier, causing {TAIL ~ the sample holder} to break through the membrane 
causing
The membrane may be broken through { HEAD ~ an activator } on the closure , such as a depressible member or a rotatable carrier , causing { TAIL ~ the sample holder } to break through the membrane
OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH