the magnitude of the compensatory vasoconstriction that follows is the net result of the interaction of the epinephrine ( e ) from the adrenal medulla and norepinephrine ( ne ) from the peripheral nerves on the peripheral vascular adrenoreceptors as well as other nonadrenergic mechanisms not discussed here ( i.e. , angiotensin endogenous opiates ) .
C0014563
epinephrine
C0028351
norepinephrine