{HEAD ~ An end} of {TAIL ~ each extension tube} 34 and 36 opposite the hub 32 supports a connector, e.g., luer connector 40 
of
{ HEAD ~ An end } of { TAIL ~ each extension tube } 34 and 36 opposite the hub 32 supports a connector , e.g. , luer connector 40
HEAD HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH