Oxytocin causes all except: (A) Lactogenesis, (B) Milk ejection, (C) Contraction of uterine muscle, (D) Myoepithelial cell contraction
Answer is A. 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)