Question

What is placenta .describe its structer.

Answer 1

Placenta is a specialise tissue embedded in the uterine wall.It contains villi on the emnryo's side and blood on the mother's side . It helps in exchange of nutrients, gases and wastes materials between the mother and embryo.

Answer 2

Placenta: It helps in the diffusion of substances from mother to foetus and from foetus to mother. The placenta is a disc-like structure attached to the uterine wall.