{TAIL ~ Evacuation} and collapse of the fluid bladders 24, 26, or some other resilient feature of the end effector 14, causes {HEAD ~ the anvil} 12 to open 
{ TAIL ~ Evacuation } and collapse of the fluid bladders 24 , 26 , or some other resilient feature of the end effector 14 , causes { HEAD ~ the anvil } 12 to open
TAIL TAIL TAIL TAIL TAIL 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