Problem: Losartan is an example of a medication that reduces blood pressure by binding to a receptor on cells of arterial smooth muscle and minimizing the effect that the naturally-occurring hormone angiotesin II has when it binds to another receptor on the same cell. Losartan's action is to: Group of answer choices Partially cause vasoconstriction Partially block vasoconstriction Partially cause vasodilation Partially block vasodilation. Need Assignment Help?