Name the hormones secreted and write their functions by corpus luteum and placenta (any two).
(i) Corpus luteum secretes large amounts of progesterone and some small amount of estradiol hormone. Both these hormones are essential for the maintainence of the endometrium which is necessary for the implantation of fertilised ovum. It also inhibits the release of FSH so that it may not develop additional follicles and eggs.
Placenta secretes human placental lactogen which ensures energy supply to the foetus by modifying the metabolism of the mother during pregnancy. It has anti insulin property which reduces the maternal insulin sensitivity thereby increasing the level of blood glucose. It also secretes Human chorionic gonadotropin (hCG) hormone. It maintains the corpus luteum in the pregnancy and stimulates the release of progesterone