<prompt> Oxytocin causes all exceptLactogenesisMilk ejectionContraction of uterine muscleMyoepithelial cell contraction  <response>: Oxytocin which is a uterine stimulant -contract the myoepithelial cells of mammary alveoli and forces milk into the bigger milk sinusoids and thus causes milk ejection Prolactin produces milk- lactogenesis Ref.Essentials of medical pharmacology TD Tripathi 7th edition page no.330 