Answer Happy

Kristin is allergic to bee venom, and when she is stung and goes into anaphylactic shock, epinephrine is administered. This is, in part, because she has an abnormal parasympathetic response that causes a loss of vasomotor tone O the immune response to the venom dogs the vessels, and epinephrine opens them up the venom binds to the cardiovascular center neurons and decreases sympathetic activity O the venom itself alters capillary permeability and increases plasma loss to the interstitial fluid, so epinephrine returns capillary permeability to normal histamine, a potent vasodilator has been released, and epinephrine stimulates vasoconstriction to counter the vasodilation