a camera for generating images of the cell over time while {HEAD ~ the cell} remains in {TAIL ~ the container} in the housing and maintained environment 
remains in
a camera for generating images of the cell over time while { HEAD ~ the cell } remains in { TAIL ~ the container } in the housing and maintained environment
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD REL REL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH