results were as follows : ( 1 ) epinephrine ( epi ) , norepinephrine ( ne ) , phenylephrine ( phe ) , and kcl induced a marked vasoconstriction in these arteries , although xylazine ( xyl ) and clonidine ( clo ) did not produce any significant change ;
C0028351
norepinephrine
C1371490
vasoconstriction