Download 7-Menst. cycle ,Ovulation

Functions of placenta
1.It act as fetal lung by continuous exchange of o2 &co2
2.Transport of nutrient material so it act as GIT during intrauterine
life.
3.Excreation of waste material & H ion, so it replace the function
of the kidney.
4.It play a role in the immune system of the fetus by transporting
Ig from maternal circulation & also it act as a barrier against
transport of some infections to the fetus.
5.It replace the function of the liver by detoxification of drugs &
chemical materials that are present in the maternal
circulation.
6.It has an endocrine function by secretion of some hormones as
estrogen, progesterone, HCG, lactogen, relaxin. These
hormones are secreted into the maternal circulation.