the placenta uterus and pituitary gland
(a)(i) Placenta
- Link between mother and foetus
- Supply food to foetus
- Supply oxygen to foetus through umbilical vein
- Elimination of waste through umblical artery
- Defense of foetus, antibodies secretion
- Passive immunity
- Secretion of oestrogen and progesterone
(ii) Uterus
- Implantation, development
- Formation of corpus luteum
- Secretion of progesterone and oestrogen
- Contraction during birth
(iii) Pituitary gland
- Secretion of FSH, – Luteinizing hormone – Oxytocin
- Luteinizing hormone stimulates testosterone secretion
- Oestrogen, progesterone, ovulation
- Maintenance of corpus luteum
- Prolactin – milk production and secretion