Question

Name the hormones produced by placenta. Give one important role of each one of these.

Answer 1

The placenta produces human chorionic gonadotropin (hCG), human placental lactogen (hPL), oestrogen, progesterone and relaxin.

1. hCG maintains the corpus luteum, helping keep oestrogen and progesterone levels high and preventing menstruation.
2. hPL supports foetal growth and helps prepare the mammary glands for lactation.
3. Oestrogen supports the growth of the uterus and reproductive tissues during pregnancy.
4. Progesterone maintains the endometrium and helps sustain pregnancy.
5. Relaxin softens pelvic connective tissue and helps dilate the cervix in preparation for childbirth.