<prompt> Oxytocin causes all except:LactogenesisMilk ejectionContraction of uterine muscleMyoepithelial cell contraction  <response>: Ans. A LactogenesisRef: Katzung 11e p657; KDT 8e p355Important actions of oxytocin are:Contraction of uterine smooth muscle directly by acting on GPCR and indirectly by release of PG and LTs.Milk ejection by contraction of myoepithelial cells surrounding mammary alveoli.At high concentration; anti-diuretic and vasopressor action can be seen.Note: Lactogenesis is the action of prolactin not oxytocin 