Several hormones like hCG, hPL, estrogen, progesterone are produced by

Step-by-step solution

Hormones secreted by the placenta are hCG, hPL, oestrogen, and progesterone. Human chorionic gonadotropin hormone (hCG). This hormone is only produced during pregnancy almost exclusively in the placenta. HCG hormone levels found in maternal blood and urine increase dramatically during the first trimester and may contribute to causing nausea and vomiting often associated with pregnancy. Human placental lactogen (hPL). This hormone, produced by the placenta, helps in the process of providing nutrition for the foetus