hat structure produces progesterone and estrogen during pregnancy?Multiple Choiceplacentahypothalamusanterior pituitaryposterior pituitaryovaries

In humans, during pregnancy, several hormones like estrogens, progestogens, thyroxine and cortisol are increased several folds in

22. After 12 weeks of gestation the principal source of estrogen and progesterone to a human fetusis the:A. ovarian follicle.B. corpus luteum.C. placenta.D. anterior pituitary.E. posterior pituitary.

Where are hormones secreted by the posterior pituitary synthesized?Multiple ChoiceAnterior pituitaryHypothalamusPosterior pituitaryThalamus

What embryo-produced hormone maintains progesterone and estrogen secretion by the corpus luteum through the first trimester of pregnancy?luteinizing hormone (LH)gonadotropin-releasing hormone (GnRH)progesteronehuman chorionic gonadotropin (hCG)follicle-stimulating hormone (FSH

Which hormone released by the pituitary gland causes contraction of the uterus, indicating the beginning of labour?