Milk ejection is facilitated by:: (A) Prolactin, (B) Oxytocin, (C) Growth hormone, (D) ACTH
Answer is B. Ans. (b) OxytocinHormones from Anterior PituitaryHORMONESMAJOR FUNCTIONSGrowth hormoneStimulates protein synthesis and overall growth of most cells and tissuesTSHStimulates synthesis and secretion of thyroid hormones (T3 & T4)Adrenocorticotropic hormone (ACTH)Stimulates synthesis and secretion of adrenocortical hormones (cortisol, androgens, and aldosterone)ProlactinPromotes development of the female breast and secretion of milkFollicle-stimulating hormone (FSH)Causes growth of follicles in the ovaries and sperm maturation in sertoli cells of testesLuteinizing hormones (LH)Stimulates testosterone synthesis in Leydig cells of testes; stimulates ovulation, formation of corpus luteum, and estrogen and progesterone synthesis in ovaries.Hormones from Posterior PituitaryAntidiuretic hormone (ADH)/ VasopressinIncrease water reabsorption by the kidneys and cause vasoconstriction and increased blood pressureOxytocinStimulates milk ejection from breasts and uterine contractions