Practice question
Question
Vasopressin-induced vasoconstriction occurs via:
Explanation
V1R → PLC → Ca²⁺ increase, is consistent with established principles of cell signaling, receptor pharmacology and cellular regulation. Experimental measurements of binding parameters, genetic loss-of-function studies and pharmacological interventions all converge on the same interpretation. Related options address neighboring concepts but do not satisfy the precise criterion stated in the question.