Estrogenic hormones

• Oestrogen 


  Secreted by the ovarian follicle

  Functions

  • repair and growth of the endometrium
  • female secondary sex characteristics
• Progesterone 


  Secreted by the corpus luteum or placenta

  Functions

  • prevents further ovulation
  • maintenance of endometrium
• Human chorionic gonadotropin 


  Secreted by the cells of the embryo at implantation

  Functions

  • prevents maturation of additional ova
  • prevents rapid degeneration of the corpus luteum after ovulation