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