More than 30 different hormones are secreted in the mother's body throughout the pregnancy. Some of them are especially secreted during pregnancy. For example - Oxytocin, prolactin, HCG, relaxin, etc. Nutritional status and mother's health influence the production of these hormones. Role of hormone in pregnancy HORMONES SOURCES OF SECRETION PRINCIPLE EFFECTS Estrogen Placenta The growth and maturation of the ovarian follicles are stimulated by estrogen Stimulate breast development during pregnancy Estrogen helps in the growth of the vagina Estrogen increases the motility of the fallopian tube It also causes pigmentation of the areola Progesterone Placenta Stimulate breast development during pregnancy In conjunction with estrogen, it helps in the differentiation of ductal tissue Favours maternal fat deposition Interferes with folic acid metabolism Under the influence of progesterone, the vagina secretes thick mucus and shows leucocytic infiltration Luteinising hormone (LH) Ant...
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