. Write the functions of the following in human fem le reproductive system:
Ovary, oviduct, uterus
How does the embryo get nourishment inside the mother's body? Explain in brief.
Ans. Ovary-Ovaries are the primary reproductive organs in a woman (or female). The function of ovaries is to produce mature female sex cells called 'ova' or 'eggs' and also to secrete the female sex hormones.
Oviduct-The ovum (or egg cell) released by an ovary goes into the oviduct through its funnel shaped opening. The fertilisation of egg by a sperm takes place in the oviduct.
Uterus-The growth and development of a fertilised. ovum (or fertilised egg) into a baby takes place in the uterus.
After fertilisation, zygote is formed which develops into an embryo. The embryo gets nutrition from the mother's blood with the help of a special tissue called placenta. This is a disc which is embedded in the uterine wall. It contains finger-like projections called villi on the embryo's side of the tissue. On the mother's side are blood spaces, which surround the villi. This provides large surface area for glucose and oxygen to pass from the mother to the embryo. In this way, the embryo gets its nutrition