Write in proper sequence the process going on in the different organs of the reproductive system of a human female starting from the time of egg production to childbirth.

In human female reproductive system, there are two ovaries. One egg is produced every month during ovulation:

(i) The ovum egg goes into the oviduct or fallopian tube.
(ii) The sperms released by the human male during copulation or mating are deposited at the top of the vagina close to the cervix of uterus. The sperms travel or goes through the uterus to the top of the tube of fallopian.
(iii) The fertilization of the ovum or egg takes place in the oviduct and a zygote is formed.
(iv) The zygote divides rapidly as it moves down slowly in the oviduct and forms a hollow ball of hundreds of cells called embryo. The close attachment of embryo to the uterine wall is called implantation.
(v) After implantation, a number of development changes takes place in embryo as well as in the wall of uterus. In the developing embryo, is called, foetus where body features are clearly seen.
(vi) A disc – like special tissue develops between the uterine wall and the foetus which is called placenta. The exchange of nutrients, oxygen and waste products between the embryo and the mother takes place through the placenta.
(vii) The time period from the fertilization up to the birth of baby is called gestation. Generaaly in humans, the average period of gestation is about 40 weeks or 280 days or nine months, from the first day of the last menstruation.
(viii) The rhythmic contraction of uterus muscles gradually pushes the baby out of the mother’s body through vagina which is called parturition. This the way, when a new born baby comes to earth.